Test Equipment

1. PM10 particulate matter: 0~999 ug/m32. PM2.5 particulate matter: 0~999 ug/m33. TVOC (total volatile organic compounds): 0~5.00 mg/m34. C6H6 (benzene): 0~3.00 mg/m35. Temperature: 10~45°C6. Humidity: 10%RH~90%RH7. Data storage capacity: 5000 records8. Power supply: 18650 rechargeable battery (with protection board) 2500mA/h, USB DC 5V/2A9. Standby time: 6 hours10. Three-color indicator for air quality status: green (excellent), yellow (mild pollution), red (severe pollution)11. 5000 data records (one record per minute) with automatic update. Data can be exported or viewed as a list and trend chart using the PC software, allowing for analysis of air quality over time.12. Real-time clock display, 2.8-inch TFT full-angle true-color screen with LCD screen-off function.13. Selectable single-item testing and simultaneous testing; selectable continuous recording and timed recording.14. ARM core chip for high performance, high integration, and low power consumption in a real-time operating system.15. Weight: 206g16. Dimensions: 146x80x68mmSpecification: Package Weight One Package Weight 0.58kgs / 1.27lb One Package Size 13cm * 11cm * 21cm / 5.12inch * 4.33inch * 8.27inch Qty per Carton 12 Carton Weight 7.40kgs / 16.31lb Carton Size 39cm * 38cm * 23cm / 15.35inch * 14.96inch * 9.06inch Loading Container 20GP: 782 cartons * 12 pcs = 9384 pcs 40HQ: 1816 cartons * 12 pcs = 21792 pcs

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1. DC voltage: 6V ~ 1000V2. AC voltage: 6V ~ 600V3. DC current: 6A ~ 10A4. AC current: 6A ~ 10A5. Resistance: 600Ω / 600kΩ / 60MΩ6. Capacitance: 100nF / 100μF / 60mF7. Display type: LCD8. Display: 5999 (3 5/6) digits, automatic polarity display9. Measurement Method: dual-slope A/D conversion10. Low voltage display: Yes11. Power supply: AAA 1.5V battery (not included)12. Pocket-sized 3 5/6 digit true RMS auto-ranging digital meter. No need to rotate the dial to select functions; the meter automatically identifies and measures different input voltages/currents/resistances and displays the values.13. High-definition large LCD screen display with clear characters. Long press HOLD for two seconds to turn on the backlight, allowing for better viewing of data and readings even at night or in dark environments. Manual/automatic backlight off for energy saving.14. Built-in flashlight function for illumination in dark environments, making it easy to read measurements.15. Retractable stand on the back for effective assistance during measurements and improved efficiency.16. External rubber protective cover, resistant to aging and cracking, extending service life and preventing instrument damage.17. Dimensions: 176 x 67 x 33mmSpecification: Package Weight One Package Weight 0.30kgs / 0.67lb One Package Size 20cm * 10cm * 6cm / 7.87inch * 3.94inch * 2.36inch Qty per Carton 30 Carton Weight 10.10kgs / 22.27lb Carton Size 42cm * 32cm * 32cm / 16.54inch * 12.6inch * 12.6inch Loading Container 20GP: 620 cartons * 30 pcs = 18600 pcs 40HQ: 1439 cartons * 30 pcs = 43170 pcs

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1. Sampling time: 0.8 seconds (60rpm)2. Measurement distance: 50mm~500mm3. Measurement rRange: 100~30000 RPM (revolutions per minute) 1.7~500 RPS (revolutions per second)4. Ambient temperature measurement: 0.0 ~ 50.0 degrees Celsius5. Ambient temperature measurement: 32.0 ~ 122 degrees Fahrenheit6. Resolution: 0.1 RPM (100~999.9 RPM); 1 RPM (above 1000 RPM); 0.1 RPS (1.7~500 RPS)7. Power supply: 3 x 1.5V AAA batteries (not included)8. Range switching: automatic9. Button panel, simple and easy to operate with a light touch to select the desired function.10. Large LCD backlight display for clear readings at night, eliminating parallax and enhancing work efficiency.11. Uses a microcontroller (MCU) and photodiode to achieve non-contact speed measurement.12. Net weight: 75g13. Dimensions: 135x47x25mmSpecification: Package Weight One Package Weight 0.14kgs / 0.30lb One Package Size 23cm * 15cm * 5cm / 9.06inch * 5.91inch * 1.97inch Qty per Carton 60 Carton Weight 9.20kgs / 20.28lb Carton Size 51cm * 25cm * 47cm / 20.08inch * 9.84inch * 18.5inch Loading Container 20GP: 445 cartons * 60 pcs = 26700 pcs 40HQ: 1033 cartons * 60 pcs = 61980 pcs

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1. Detection Indication: buzzer alarm / vibration / headphone sound alarm2. Detectable distance: 2.5 inches / 50mm3. Detectable metal size: 2x10mm4. Detection frequency: 13KHz5. LED light slarm indication: yes6. Sound alarm indication: 75dB7. Detection principle: electromagnetic induction8. Detectable direction: both sides9. Continuous working time: 6-10 hours10. Sensitivity adjustment: yes11. External headphone jack: yes12. Operating environment: 0~40 degrees Celsius13. Storage temperature: -10~50 degrees Celsius14. Power supply: 9V rechargeable battery15. Charger: input AC 100-240V 50-60Hz; Output DC 12V 200mA 3.5mm16. Streamlined appearance, small body with great power, lightweight and easy to carry, without adding extra burden.17. The shell is made of ABS engineering material, integrally molded, with strong impact resistance, fine craftsmanship, and durability.18. Ergonomic design with thickened anti-slip handle to enhance friction and prevent slipping.19. Triple alarm of sound, light, and vibration; unique recessed LED light design prevents damage to the LED light due to improper placement.20. This detector is lightweight, has a large probe area, and detects quickly. It can detect all types of metal objects hidden on the human body, such as pistols, small knives, box cutters, jewelry, electrical components, etc.21. The sensitivity of this detector varies depending on the volume, size, density of the detected metal object, and surrounding environment.22. Weight: 270g23. Dimensions: 413x77x39mmSpecification: Package Weight One Package Weight 0.45kgs / 0.99lb One Package Size 45cm * 10cm * 6cm / 17.72inch * 3.94inch * 2.36inch Qty per Carton 20 Carton Weight 10.00kgs / 22.05lb Carton Size 47cm * 28cm * 40cm / 18.5inch * 11.02inch * 15.75inch Loading Container 20GP: 506 cartons * 20 pcs = 10120 pcs 40HQ: 1176 cartons * 20 pcs = 23520 pcs

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1. Vibration acquisition: piezoelectric ceramic accelerometer (shear type)2. Acceleration measurement range: 0.1~199.9 m/s23. Velocity measurement range: 0.1~199.9 mm/s4. Displacement measurement range: 0.001~1.999 mm5. Acceleration measurement frequency range: 10Hz~1KHz (LO) 1KHz~15KHz (HI)6. Velocity measurement frequency range: 10Hz~1KHz (LO)7. Displacement measurement frequency range: 10Hz~1KHz (LO)8. LCD display: 3.5-digit digital display9. Display data update cycle: 1 second10. Data output: AC output 2V Peak (full scale display) Load 10 kΩ11. Automatic shutdown function: automatically shuts down after 1 minute of no operation12. LCD backlight function: turns off after 7 seconds of no operation13. Power supply: 3.7V 1000mA/h lithium battery14. Uses piezoelectric ceramic measurement technology for fast and accurate measurement, equipped with two probes (long and short) for various measurement scenarios.15. Three mode selections, switchable according to measurement needs. Select the corresponding measurement mode (acceleration/velocity/displacement) and frequency (HI/LO) based on the physical quantity to be measured and the vibration source frequency.16. Replaceable probe design, allowing selection of the appropriate probe for different measurement environments, making measurement simple and convenient.17. Uses a removable lithium battery, 1000mA/h large capacity battery for long-lasting use, providing up to 60 hours of continuous use on a full charge.18. LCD backlight display, easily handles bright and dark environments, clearly and intuitively displaying measurement values ??for convenient measurement.19. High-quality plastic buttons, comfortable to the touch and durable.20. Net Weight: 130g21. Dimensions: 67x30x183mmSpecification: Package Weight One Package Weight 0.93kgs / 2.04lb One Package Size 30cm * 21cm * 9cm / 11.81inch * 8.27inch * 3.54inch Qty per Carton 10 Carton Weight 10.00kgs / 22.05lb Carton Size 45cm * 44cm * 35cm / 17.72inch * 17.32inch * 13.78inch Loading Container 20GP: 384 cartons * 10 pcs = 3840 pcs 40HQ: 893 cartons * 10 pcs = 8930 pcs

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1. Power supply: 3.7V Lithium Battery2. Display: color LCD Screen3. Salinity measurement range: 0.00~9.99ppt / 10.0~50ppt4. Resolution: 0.01ppt / 0.1ppt5. Measured solution temperature Range: 0~60°C6. USB direct charging, powerful battery life, supports multiple charging methods7. Detachable probe design, convenient for users to replace, simple and easy to understand8. High-definition LCD color screen display, easily handles dark environments at night, simultaneously displaying water salinity and temperature data9. IP65 waterproof and moisture-proof design; even if dropped into water or solution, it can still be used normally after quick retrieval.10. Applications: this pen-type salinity meter is designed for on-site or field operation, displaying both salinity and temperature values. It is suitable for water source testing, aquaculture, printing and dyeing, electroplating, beverage industry, and scientific research units for water quality salinity measurement.11. Dimensions: 180x25x45mmSpecification: Package Weight One Package Weight 0.25kgs / 0.56lb One Package Size 27cm * 10cm * 7cm / 10.63inch * 3.94inch * 2.76inch Qty per Carton 40 Carton Weight 10.00kgs / 22.05lb Carton Size 41cm * 31cm * 55cm / 16.14inch * 12.2inch * 21.65inch Loading Container 20GP: 381 cartons * 40 pcs = 15240 pcs 40HQ: 885 cartons * 40 pcs = 35400 pcs

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1. Acceleration measurement range: 0.1~199.9 m/s2 peak2. Velocity measurement range: 0.1~199.9 mm/s RMS3. Displacement measurement range: 0.001~1.999 mm peak-to-peak4. Acceleration measurement frequency range: 10Hz~1KHz (LO) 1KHz-15KHz (HI)5. Velocity measurement frequency range: 10Hz~1KHz (LO)6. Displacement measurement frequency range: 10Hz~1KHz (LO)7. LCD display: 3.5-digit digital display8. Display data update cycle: 1 second9. Power supply: 9V battery (not included)10. Static current: 15uA11. Working current: 25mA12. Automatic shutdown function: automatically shuts down after 1 minute of inactivity13. LCD backlight function: backlight turns off after 7 seconds of inactivity14. Low battery indication: 6.4V15. The measurement handle features an ergonomic design with soft materials on both sides, allowing for comfortable and easy measurement in any direction. It uses insulating materials.16. The buttons are made of high-quality rubber material, ensuring durability and comfortable feel even with long-term use.17. The instrument uses a separate sensor, allowing for easy measurement of various objects and environments. Magnetic suction probe/short probe/long probe options are available.18. The instrument has a built-in backlight display function for easy use in low-light environments and displays the current ambient temperature.19. Dimensions: 159x66x31mm20. Weight: 155gSpecification: Package Weight One Package Weight 1.06kgs / 2.33lb One Package Size 27cm * 22cm * 7cm / 10.63inch * 8.66inch * 2.76inch Qty per Carton 20 Carton Weight 21.10kgs / 46.52lb Carton Size 46cm * 33cm * 56cm / 18.11inch * 12.99inch * 22.05inch Loading Container 20GP: 313 cartons * 20 pcs = 6260 pcs 40HQ: 728 cartons * 20 pcs = 14560 pcs

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1. Temperature measurement range: -50 - 490 degrees Celsius (-58 - 914 degrees Fahrenheit)2. Distance ratio: 12:13. Emissivity: Adjustable from 0.1 to 1.00 (default value is 0.95)4. Spectral response and response time: (8 - 14) microseconds & 500 milliseconds5. Repeatability: ±1% or ±1°C6. Supporting functions: high/low temperature alarm function, Celsius/Fahrenheit unit selection, data saving function, laser indicator, automatic shutdown function7. Screen: LCD screen display8. Power supply method: 2 x 1.5 V AAA batteries (not included)Specification: Package Weight One Package Weight 0.13kgs / 0.28lb One Package Size 17cm * 11cm * 6cm / 6.69inch * 4.33inch * 2.36inch Qty per Carton 48 Carton Weight 8.00kgs / 17.64lb Carton Size 50cm * 36cm * 35cm / 19.69inch * 14.17inch * 13.78inch Loading Container 20GP: 423 cartons * 48 pcs = 20304 pcs 40HQ: 982 cartons * 48 pcs = 47136 pcs

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1. Temperature measurement range: -50 - 390 degrees Celsius (-58 - 734 degrees Fahrenheit)2. Distance ratio: 12:13. Emissivity: default value: 0.954. Resolution: 0.1 degrees Celsius / 0.1 degrees Fahrenheit5. Spectral response: (8 - 14) μm6. Response time: 500 milliseconds, 95% response time7. Repeatability: reading error does not exceed 1% or 0.1 degrees Celsius8. Operating temperature: 0 - 40 degrees Celsius (32 - 104 degrees Fahrenheit)9. Operating humidity: relative humidity 10% - 95% (non-condensing type)10. Screen: LCD screen display11. Power supply method: 2 x 1.5 V AAA batteries (not included)Specification: Package Weight One Package Weight 0.12kgs / 0.27lb One Package Size 17cm * 11cm * 6cm / 6.69inch * 4.33inch * 2.36inch Qty per Carton 48 Carton Weight 7.00kgs / 15.43lb Carton Size 50cm * 36cm * 35cm / 19.69inch * 14.17inch * 13.78inch Loading Container 20GP: 423 cartons * 48 pcs = 20304 pcs 40HQ: 982 cartons * 48 pcs = 47136 pcs

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1. Power supply: 9V battery (not included)2. LED screen: 2 inches3. Current: 30mA4. Sensitivity: 5cm (tested with a one-yuan coin)5. Frequency: 3kHz6. Power: 270mW7. Search coil size: 6 inches (16.6cm)8. Temperature range: -20~60 degrees Celsius9. Can be used to search for coins, relics, jewelry, gold, and silver anywhere.10. Enhances children and students interest in exploring nature. Many substances in nature contain metallic properties and exist in various forms. Through hands-on exploration and searching, children can subconsciously understand the wonders and mysteries of nature through their own practice, learning knowledge through play, and strengthening their hobbies and interests.11. One-button start, convenient and quick to begin metal detection. High-sensitivity design ensures efficient and accurate detection, making it an ideal tool for metal detection tasks.Specification: Package Weight One Package Weight 0.86kgs / 1.90lb One Package Size 46cm * 19cm * 9cm / 18.11inch * 7.48inch * 3.54inch Qty per Carton 14 Carton Weight 12.00kgs / 26.46lb Carton Size 57cm * 39cm * 48cm / 22.44inch * 15.35inch * 18.9inch Loading Container 20GP: 249 cartons * 14 pcs = 3486 pcs 40HQ: 580 cartons * 14 pcs = 8120 pcs

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1. Three operating modes: all-metal mode, discrimination mode, precious metal mode2. Four levels of sensitivity adjustment3. Headphone jack: allows connection of headphones (not included)4. LCD display: the screen will display a notification when metal is detected5. Waterproof search coil: the metal detector can be used in shallow water6. Adjustable stem: adjusts the length of the metal detector7. Backlight switch with automatic adjustment, suitable for use in dim conditions8. Power supply: 2 x 9V (6F22) Batteries not included!!9. Frequency: 5.0 KHz10. Current: static 10mA; 70mA MAX11. Voltage: 7.2-9.6V12. Sensitivity: detects a 1-yuan coin at a depth of 10-12 cm; larger metal objects can be detected at greater depths13. Extendable length: 80-110cm14. Can be used to search for coins, relics, jewelry, gold, and silver anywhere15. Widely used for security checks, outdoor treasure hunting, metal inspection, etc.Specification: Package Weight One Package Weight 1.20kgs / 2.65lb One Package Size 42cm * 21cm * 11cm / 16.54inch * 8.27inch * 4.33inch Qty per Carton 10 Carton Weight 12.00kgs / 26.46lb Carton Size 54cm * 44cm * 43cm / 21.26inch * 17.32inch * 16.93inch Loading Container 20GP: 261 cartons * 10 pcs = 2610 pcs 40HQ: 605 cartons * 10 pcs = 6050 pcs

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1. Power supply: 9V battery (not included)2. LED screen: 2 inches3. Current: 30mA4. Sensitivity: 5cm (tested with a one-yuan coin)5. Frequency: 3kHz6. Power: 270mW7. Search coil size: 6 inches (16.6cm)8. Temperature range: -20~60 degrees Celsius9. Can be used to search for coins, relics, jewelry, gold, and silver anywhere.10. Enhances children and students interest in exploring nature. Many substances in nature contain metallic properties and exist in various forms. Through hands-on exploration and searching, children can subconsciously understand the wonders and mysteries of nature through their own practice, learning knowledge through play, and strengthening their hobbies and interests.11. One-button start, convenient and quick to begin metal detection. High-sensitivity design ensures efficient and accurate detection, making it an ideal tool for metal detection tasks.Specification: Package Weight One Package Weight 0.86kgs / 1.90lb One Package Size 46cm * 19cm * 9cm / 18.11inch * 7.48inch * 3.54inch Qty per Carton 14 Carton Weight 12.00kgs / 26.46lb Carton Size 57cm * 39cm * 48cm / 22.44inch * 15.35inch * 18.9inch Loading Container 20GP: 249 cartons * 14 pcs = 3486 pcs 40HQ: 580 cartons * 14 pcs = 8120 pcs

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1. Power supply: 9V battery (not included)2. LED screen: 2 inches3. Current: 30mA4. Sensitivity: 5cm (tested with a one-yuan coin)5. Frequency: 3kHz6. Power: 270mW7. Search coil size: 6 inches (16.6cm)8. Temperature range: -20~60 degrees Celsius9. Can be used to search for coins, relics, jewelry, gold, and silver anywhere.10. Enhances children and students interest in exploring nature. Many substances in nature contain metallic properties and exist in various forms. Through hands-on exploration and searching, children can subconsciously understand the wonders and mysteries of nature through their own practice, learning knowledge through play, and strengthening their hobbies and interests.11. One-button start, convenient and quick to begin metal detection. High-sensitivity design ensures efficient and accurate detection, making it an ideal tool for metal detection tasks.Specification: Package Weight One Package Weight 0.86kgs / 1.90lb One Package Size 46cm * 19cm * 9cm / 18.11inch * 7.48inch * 3.54inch Qty per Carton 14 Carton Weight 12.00kgs / 26.46lb Carton Size 57cm * 39cm * 48cm / 22.44inch * 15.35inch * 18.9inch Loading Container 20GP: 249 cartons * 14 pcs = 3486 pcs 40HQ: 580 cartons * 14 pcs = 8120 pcs

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1. pH measurement range: 0-14pH 2. pH resolution: HT630A: 0.1pH; HT630B: 0.01pH 3. pH measurement accuracy: HT630A: +/-0.1pH; HT630B: +/-0.05pH 4. Temperature measurement range: 0 - 60°C (32°F - 140°F) 5. Temperature resolution: 0.1°C/0.1°F 6. Temperature accuracy: +/-1°C, +/-3°F 7. Display: LCD 8. Three-point calibration: pH 4.00, pH 6.86, pH 9.12 9. Auto power-off: automatically shuts down if no operation within 10 minutes after power-on 10. Supported functions: ATC automatic temperature compensation, temperature display, °C/°F switching, data hold, low battery alert 11. Power supply: 2 x 1.5V AAA batteries (not included) 12. Safety rating: EN61326-1 13. Weight: about 64g 14. Size: about 18.3 x 2.7 x 1.8cm Features:1. Glass membrane pH sensor with low-impedance glass sensitive film enhances instrument response speed2. Rapid response and high-precision measurement3. Three calibration modes for water pH measurement: 4.00, 6.86, 9.18. Automatic buffer recognition simplifies calibration4. Automatic temperature compensation minimizes measurement errors caused by extreme solution temperatures5. Dual-display mode simultaneously shows pH and temperature data for quick water quality assessment6. Compact body design for portability and convenient measurement7. Detachable probe design for easy cleaning, maintenance, and operation8. High-definition backlit display simultaneously shows pH/temperature; backlight activates with a single press for low-light usePackage list:- Test pen x 1- PH4.00 reagent x 1- PH6.86 reagent x 1- PH9.18 reagent x 1- Measuring cup x 1- Storage pouch x 1- Instruction manual x 1Specification: Package Weight One Package Weight 0.30kgs / 0.67lb One Package Size 22cm * 12cm * 7cm / 8.66inch * 4.72inch * 2.76inch Qty per Carton 50 Carton Weight 16.00kgs / 35.27lb Carton Size 57cm * 56cm * 23cm / 22.44inch * 22.05inch * 9.06inch Loading Container 20GP: 363 cartons * 50 pcs = 18150 pcs 40HQ: 843 cartons * 50 pcs = 42150 pcs

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1. pH measurement range: 0-14pH 2. pH resolution: HT630A: 0.1pH; HT630B: 0.01pH 3. pH measurement accuracy: HT630A: +/-0.1pH; HT630B: +/-0.05pH 4. Temperature measurement range: 0 - 60°C (32°F - 140°F) 5. Temperature resolution: 0.1°C/0.1°F 6. Temperature accuracy: +/-1°C, +/-3°F 7. Display: LCD 8. Three-point calibration: pH 4.00, pH 6.86, pH 9.12 9. Auto power-off: automatically shuts down if no operation within 10 minutes after power-on 10. Supported functions: ATC automatic temperature compensation, temperature display, °C/°F switching, data hold, low battery alert 11. Power supply: 2 x 1.5V AAA batteries (not included) 12. Safety rating: EN61326-1 13. Weight: about 64g 14. Size: about 18.3 x 2.7 x 1.8cm Features:1. Glass membrane pH sensor with low-impedance glass sensitive film enhances instrument response speed2. Rapid response and high-precision measurement3. Three calibration modes for water pH measurement: 4.00, 6.86, 9.18. Automatic buffer recognition simplifies calibration4. Automatic temperature compensation minimizes measurement errors caused by extreme solution temperatures5. Dual-display mode simultaneously shows pH and temperature data for quick water quality assessment6. Compact body design for portability and convenient measurement7. Detachable probe design for easy cleaning, maintenance, and operation8. High-definition backlit display simultaneously shows pH/temperature; backlight activates with a single press for low-light usePackage list:- Test pen x 1- PH4.00 reagent x 1- PH6.86 reagent x 1- PH9.18 reagent x 1- Measuring cup x 1- Storage pouch x 1- Instruction manual x 1Specification: Package Weight One Package Weight 0.30kgs / 0.67lb One Package Size 22cm * 12cm * 7cm / 8.66inch * 4.72inch * 2.76inch Qty per Carton 50 Carton Weight 16.00kgs / 35.27lb Carton Size 57cm * 56cm * 23cm / 22.44inch * 22.05inch * 9.06inch Loading Container 20GP: 363 cartons * 50 pcs = 18150 pcs 40HQ: 843 cartons * 50 pcs = 42150 pcs

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1. Camera: HT669A: 1; HT669A-PRO: 22. Camera resolution: 1080p3. Camera diameter: HT669A: 7mm; HT669A-PRO: 8mm4. Lens focal length: HT669A: 3-10cm; HT669A-PRO: Front 3-9cm, lateral side 2-6cm5. Viewing angle: HT669A: 80°; HT669A-PRO: 70°6. Display size: HT669A: 4.3 inch; HT669A-PRO: 5.0 inch7. Display resolution: HT669A: 480 x 272; HT669A-PRO: 420 x 8428. Photo/Video: 1080p9. Camera LED: HT669A: 6 LEDs, 0.06 W; HT669A-PRO: front 6 LEDs 0.06W, side 0.2W10. Operating voltage: DC 5V11. TF card: 32GB12. Flashlight power: 0.2-0.25W13. Battery capacity: HT669A: 2000mAh; HT669A-PRO: 4000mAh14. Functions: camera LED height adjustment, screen rotation, zoom, data storage, time display, time setting, battery level indicator, low battery alert, screen brightness adjustment, system reset, formatting, flashlight, auto power-off, USB data export15. Supported languages: Simplified Chinese, Traditional Chinese, English, French, Russian, Portuguese, Spanish, German, Japanese, Korean, Thai16. Cable material: hard tube17. Cable length: about 3 metersFeatures:1. High-definition large screen with zoom in/out functionality for crystal-clear detail display2. 1080P HD camera supporting triple camera input (HT669A-PRO model only)3. Rigid cable designed for flexible bending and folding. Features copper superconducting core for stable image transmission. reinforced construction ensures durability and abrasion resistance4. Fully waterproof lens housing with 6 built-in LEDs and 5-level brightness adjustment for optimal performance underwater and in low-light conditions5. Supports 12 languages to meet diverse regional requirements6. Portable handheld design for one-handed operation with clearly marked function buttons7. IP67 dustproof/waterproof/moisture-resistant rating; main unit features rainproof protectionPackage list:- Main unit x 1- Probe/cable x 1- Small tools x 3- Charging cable x 1- Instruction manual x 1Specification: Package Weight One Package Weight 0.80kgs / 1.77lb One Package Size 21cm * 19cm * 5cm / 8.27inch * 7.48inch * 1.97inch Qty per Carton 8 Carton Weight 7.00kgs / 15.43lb Carton Size 39cm * 35cm * 25cm / 15.35inch * 13.78inch * 9.84inch Loading Container 20GP: 781 cartons * 8 pcs = 6248 pcs 40HQ: 1814 cartons * 8 pcs = 14512 pcs

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1. Suitable for lead-acid, ternary lithium, lithium iron phosphate, and other types of batteries with an operating voltage range of (8V~100V).2. Overcharge and over-discharge voltage limits can be set, with alarm reminders for safer use.3. High-definition large screen display, with exceptional clarity.4. Built-in storage chip, data is not lost even after power failure.5. Alarm reminder: built-in light alarm.6. Fully compatible and suitable for multiple scenarios.7. Dimensions: 73.78 x 43.8 x 12mmSpecification: Package Weight One Package Weight 0.04kgs / 0.10lb One Package Size 10cm * 6cm * 4cm / 3.94inch * 2.36inch * 1.57inch Qty per Carton 192 Carton Weight 8.80kgs / 19.40lb Carton Size 42cm * 38cm * 34cm / 16.54inch * 14.96inch * 13.39inch Loading Container 20GP: 491 cartons * 192 pcs = 94272 pcs 40HQ: 1140 cartons * 192 pcs = 218880 pcs

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1. Camera: HT669A: 1; HT669A-PRO: 22. Camera resolution: 1080p3. Camera diameter: HT669A: 7mm; HT669A-PRO: 8mm4. Lens focal length: HT669A: 3-10cm; HT669A-PRO: Front 3-9cm, lateral side 2-6cm5. Viewing angle: HT669A: 80°; HT669A-PRO: 70°6. Display size: HT669A: 4.3 inch; HT669A-PRO: 5.0 inch7. Display resolution: HT669A: 480 x 272; HT669A-PRO: 420 x 8428. Photo/Video: 1080p9. Camera LED: HT669A: 6 LEDs, 0.06 W; HT669A-PRO: front 6 LEDs 0.06W, side 0.2W10. Operating voltage: DC 5V11. TF card: 32GB12. Flashlight power: 0.2-0.25W13. Battery capacity: HT669A: 2000mAh; HT669A-PRO: 4000mAh14. Functions: camera LED height adjustment, screen rotation, zoom, data storage, time display, time setting, battery level indicator, low battery alert, screen brightness adjustment, system reset, formatting, flashlight, auto power-off, USB data export15. Supported languages: Simplified Chinese, Traditional Chinese, English, French, Russian, Portuguese, Spanish, German, Japanese, Korean, Thai16. Cable material: hard tube17. Cable length: about 3 metersFeatures:1. High-definition large screen with zoom in/out functionality for crystal-clear detail display2. 1080P HD camera supporting triple camera input (HT669A-PRO model only)3. Rigid cable designed for flexible bending and folding. Features copper superconducting core for stable image transmission. reinforced construction ensures durability and abrasion resistance4. Fully waterproof lens housing with 6 built-in LEDs and 5-level brightness adjustment for optimal performance underwater and in low-light conditions5. Supports 12 languages to meet diverse regional requirements6. Portable handheld design for one-handed operation with clearly marked function buttons7. IP67 dustproof/waterproof/moisture-resistant rating; main unit features rainproof protectionPackage list:- Main unit x 1- Probe/cable x 1- Small tools x 3- Charging cable x 1- Instruction manual x 1Specification: Package Weight One Package Weight 0.70kgs / 1.55lb One Package Size 21cm * 19cm * 5cm / 8.27inch * 7.48inch * 1.97inch Qty per Carton 8 Carton Weight 6.00kgs / 13.23lb Carton Size 39cm * 35cm * 25cm / 15.35inch * 13.78inch * 9.84inch Loading Container 20GP: 781 cartons * 8 pcs = 6248 pcs 40HQ: 1814 cartons * 8 pcs = 14512 pcs

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1. Recommended testing material: Solar film2. Peak wavelength for visible light: 530 nm3. Peak wavelength for infrared light: 940 nm4. Peak wavelength for ultraviolet light: 365 nm5. Power supply: 4 AAA batteries (not included)6. Suitable for measuring thin films, coated glass, car window tinting films, and side windshields; ideal for quality control, inspection, and production environments.7. Integrates ultraviolet transmittance, infrared transmittance, and light transmittance measurement functions, allowing for comprehensive window film testing on one device.8. Data lock: After measurement, the data can be locked on the screen for easy reading.9. Efficient operation: Provides fast measurement function, simultaneously displaying ultraviolet, visible light, and infrared transmittance values ??for instant understanding of material performance.10. Portable and easy to use: Lightweight and compact design, battery-powered (batteries not included), ensuring portability and ease of use for on-the-go measurements.11. Functions: Visible Light Transmittance (VLT); Infrared Rejection Rate (IRR); Ultraviolet Rejection Rate (UVR)12. Weight: Approx. 630 g13. Dimensions: 93 x 54 x 24 mmOperating instructions1. Power on: briefly press the "ON/Hold" button to turn on the instrument. Do not insert the test sample into the test slot before turning on, otherwise self-calibration will not be completed.2. After powering on, when "VLT" displays 100%, and both "UVR" and "IRR" display 0.0%, you can insert the sample into the instruments test slot.3. Keep the test sample still. The test data will be displayed on the LCD screen. Once the data stabilizes, briefly press the "ON/Hold" button to save the test data (a "Hold" symbol will appear in the upper left corner of the LCD screen) for easy reading.4. Power off: press and hold the "ON/HOLD" button for 3 seconds and then release. Otherwise, the instrument will automatically shut down after 3 minutes of inactivity. Automatically shuts off after 5 minutes of inactivity.5. In "Hold" mode, the test data will not change even if the test sample is removed. To perform another measurement, simply short press the "On/Hold" button to cancel "Hold" mode and return to "Measurement" mode.Package contents:DY32A main unit x 1Storage bag x 1Operating instructions x 1Packaging box x 1Specification: Package Weight One Package Weight 0.35kgs / 0.78lb One Package Size 21cm * 15cm * 8cm / 8.27inch * 5.91inch * 3.15inch Qty per Carton 16 Carton Weight 6.70kgs / 14.77lb Carton Size 44cm * 32cm * 34cm / 17.32inch * 12.6inch * 13.39inch Loading Container 20GP: 557 cartons * 16 pcs = 8912 pcs 40HQ: 1293 cartons * 16 pcs = 20688 pcs

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1. DC voltage: 200mV/2V/20V/200V/1000V2. AC voltage: 2V/20V/200V/700V3. DC current: 2mA/20mA/200mA/20A4. AC current: 2mA/20mA/200mA/20A5. Resistance: 200Ω/2KΩ/20KΩ/200KΩ/20MΩ6. Capacitance: 2nF/20nF/200nF/2μF/200μF7. Frequency: 2kHz8. LCD display Value: 19999. LCD screen size: 70x48mm large screen10. Mechanical protection function: test lead jack mechanical protection function11. Overload protection function: full range overload protection function12. Voltage input impedance: 10MΩ13. Back with support stand, can be tilted and placed on the desktop, allowing you to measure without holding it with both hands.14. Test lead jacks are smooth and secure, with user-friendly mechanical baffles for protection, effectively preventing misoperation and ensuring good plug-in and removal.15. If there is no operation for 15 minutes, the machine will automatically shut down. If the display shows a low battery indicator, the battery needs to be replaced.16. Safe, drop-proof, shockproof, and non-slip leather case to prevent shell damage; thick, durable, and non-slip.17. Product dimensions: 192x88x42mm18. Weight: approximately 600gSpecification: Package Weight One Package Weight 0.60kgs / 1.33lb One Package Size 21cm * 13cm * 9cm / 8.27inch * 5.12inch * 3.54inch Qty per Carton 12 Carton Weight 8.30kgs / 18.30lb Carton Size 44cm * 28cm * 29cm / 17.32inch * 11.02inch * 11.42inch Loading Container 20GP: 746 cartons * 12 pcs = 8952 pcs 40HQ: 1732 cartons * 12 pcs = 20784 pcs

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1. Radiation types detected: β rays, γ rays, X-rays2. Detector: energy-compensated GM tube 48 x 6.5mm3. Current dose rate: 0.00 - 50,000 μSv/h (50 mSv/h)4. Cumulative dose equivalent: 0.00 μSv - 5000 mSv5. Energy range: 48 keV - 1.5 MeV (±30% error for 137Cs-)6. Sensitivity: 80 CPM/μSv7. Dose units: μSv/h, mSv/h8. Relative inherent error: -17% to 25%9. Power supply: 2 x 1.5V AAA batteries (not included)10. Size: about 16.5 × 1.4 × 1.2 cm11. Weight: about 44gFeatures:1. Utilizes a GM counter tube with high sensitivity to ensure measurement accuracy2. Simple operation with one-button measurement3. Dual measurement units to meet diverse needs4. Auto-shuts off if no measurement signal is detected within 5 minutes after startup5. High-definition backlit display for easy reading of measurement data6. High-strength eco-friendly ABS plastic housing, impact-resistant and durable7. Lightweight and compact pen-style design for convenient portabilitySpecification: Package Weight One Package Weight 0.20kgs / 0.45lb One Package Size 19cm * 6cm * 5cm / 7.48inch * 2.36inch * 1.97inch Qty per Carton 100 Carton Weight 20.70kgs / 45.64lb Carton Size 47cm * 37cm * 20cm / 18.5inch * 14.57inch * 7.87inch Loading Container 20GP: 766 cartons * 100 pcs = 76600 pcs 40HQ: 1779 cartons * 100 pcs = 177900 pcs

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1. Full-color display multifunctional tester2. Measures transistors, diodes, resistors, capacitors, inductors, thyristors, field-effect transistors, zener diodes, dual diodes, light-emitting diodes, etc.3. Measures voltage4. Built-in lithium battery with extended runtime5. Automatic calibration function6. Capacitors: 25pF - 100mF (Discharge capacitors before testing)7. Resistors: 0.01 - 50M 8. Inductors: 0.01mH - 20H9. Batteries: 0.1 - 4.5VNote:1. ESR value displayed only for large-capacity electrolytic capacitors2. This tester is not intended for high-precision measurements3. Not suitable for testing high-power devices4. Double-click to access calibration optionsSpecification: Package Weight One Package Weight 0.13kgs / 0.30lb One Package Size 12cm * 10cm * 4cm / 4.72inch * 3.94inch * 1.57inch Qty per Carton 100 Carton Weight 14.00kgs / 30.86lb Carton Size 50cm * 38cm * 32cm / 19.69inch * 14.96inch * 12.6inch Loading Container 20GP: 438 cartons * 100 pcs = 43800 pcs 40HQ: 1018 cartons * 100 pcs = 101800 pcs

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1. 2.4-inch TFT-LCD high-definition color screen with backlight and clear reading display2. Can display the change trend of the input real-time signal through the curve (can record up to 100,000 or 15 groups of data)3. Applicable working conditions: PLC system debugging, DCS system debugging simulation, valve positioner adjustment, instrument test calibration, frequency converter detection4. Small shape, easy to carry5. Built-in 3000mAh lithium battery, can stand by for 24 hours6. The remaining power can be displayed in the upper right corner of the screen7. Support TYPE-C interface fast charging8. ABS anti-drop hard shell + silicone surround protection9. LCD size: 2.4 inches10. Power input: 5V-12V/100W (MAX)11. Weight: 167 grams12. Dimensions: 112x82x28 mmPacking list:- Signal generator x 1- USB charging head x 1- TYPE-C data cable x 1- Alligator test clip x 4- User manual x 1- Box x 1Specification: Package Weight One Package Weight 0.49kgs / 1.09lb One Package Size 17cm * 18cm * 11cm / 6.69inch * 7.09inch * 4.33inch Qty per Carton 20 Carton Weight 10.20kgs / 22.49lb Carton Size 52cm * 35cm * 35cm / 20.47inch * 13.78inch * 13.78inch Loading Container 20GP: 418 cartons * 20 pcs = 8360 pcs 40HQ: 971 cartons * 20 pcs = 19420 pcs

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1. Sampling rate: 25Ms/s2. Bandwidth: 200k3. Vertical sensitivity: 10mv/div- 20v/dIV (1-2-5 gradual)4. Time base range: 10μs/Div-50s/Div (1-2-5 increment)5. Voltage range: X1: 40V (VPP: 80V), X10: 400V (PP: 800V)6. Triggering method: automatic routine/single shot7. Coupling method: AC/DC8. Display: 2.8 inches/PPI: 320*2409. USB charging: 5V/1A10. Lithium battery capacity: 1000mAh11. Calibration square wave: frequency 1K12. Built-in large-capacity lithium battery for power supply, allowing you to work outdoors without site restrictions13. Highly sensitive buttons, simple and easy to understand operating experience14. Size: 99x68.3x19.5mm15. Weight: 100gStandard:-152 host x 1- Type-C data cable x 1- Common probe x 1- Instructions x 1Upgrades:-152 Host x 1- Type-C data cable x 1- Common probe x 1- P6100 high voltage probe x 1- Adapter x 1- Instructions x 1Specification: Package Weight One Package Weight 0.28kgs / 0.61lb One Package Size 21cm * 15cm * 5cm / 8.27inch * 5.91inch * 1.97inch Qty per Carton 100 Carton Weight 25.40kgs / 56.00lb Carton Size 46cm * 43cm * 27cm / 18.11inch * 16.93inch * 10.63inch Loading Container 20GP: 499 cartons * 100 pcs = 49900 pcs 40HQ: 1159 cartons * 100 pcs = 115900 pcs

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1. Sampling rate: 25Ms/s2. Bandwidth: 200k3. Vertical sensitivity: 10mv/div- 20v/dIV (1-2-5 gradual)4. Time base range: 10μs/Div-50s/Div (1-2-5 increment)5. Voltage range: X1: 40V (VPP: 80V), X10: 400V (PP: 800V)6. Triggering method: automatic routine/single shot7. Coupling method: AC/DC8. Display: 2.8 inches/PPI: 320*2409. USB charging: 5V/1A10. Lithium battery capacity: 1000mAh11. Calibration square wave: frequency 1K12. Built-in large-capacity lithium battery for power supply, allowing you to work outdoors without site restrictions13. Highly sensitive buttons, simple and easy to understand operating experience14. Size: 99x68.3x19.5mm15. Weight: 100gStandard:-152 host x 1- Type-C data cable x 1- Common probe x 1- Instructions x 1Upgrades:-152 Host x 1- Type-C data cable x 1- Common probe x 1- P6100 high voltage probe x 1- Adapter x 1- Instructions x 1Specification: Package Weight One Package Weight 0.28kgs / 0.61lb One Package Size 21cm * 15cm * 5cm / 8.27inch * 5.91inch * 1.97inch Qty per Carton 100 Carton Weight 25.40kgs / 56.00lb Carton Size 46cm * 43cm * 27cm / 18.11inch * 16.93inch * 10.63inch Loading Container 20GP: 499 cartons * 100 pcs = 49900 pcs 40HQ: 1159 cartons * 100 pcs = 115900 pcs

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1. The 4.3-inch capacitive touch screen responds instantly with a light touch, while the physical buttons ensure overall control. The integration of both interaction methods makes every operation smooth and unobstructed.2. With a simple touch of the fingertip, operations such as switching and confirmation can be completed. The colorization and layering enhance the presentation of information, making the operation more precise.3. The body is lightweight and compact, taking up little space.4. The combination of FPGA, MCU, and ADC is not a simple stacking but a deep collaboration of "high-speed hardware processing + flexible software control + precise signal acquisition", possessing an ultra-fast signal processing capability.5. A powerful tool for measuring power supply ripple, avoiding high-frequency noise interference, restoring the true signal, and improving measurement accuracy and stability.6. 6 types of mathematical operations, enabling easy waveform measurement and enhancing data analysis capabilities.7. 13 types of parameter measurements (such as RMS, peak value, etc.), combined with cursor positioning, quickly capturing abnormal signals.8. Fluorescent display combined with grayscale and color temperature, real-time capturing signal dynamics, further analyzing details, intermittent events, and intuitively distinguishing signal components, easily detecting glitch-like abnormal signals.9. Automatic triggering forces a rapid display of waveforms when there is no signal, and normal triggering allows for single-trigger capture of occasional signals to freeze the waveform for analysis to ensure measurement accuracy.10. Through "high-resolution display + true RMS algorithm + professional function integration", it not only meets the requirements for research and development debugging to capture tiny parameter changes but also solves the accuracy problem of non-sinusoidal wave measurement.11. Equipped with curve recording function, it can capture and present changes in various measurement parameters in real time, generating clear and intuitive data trend graphs.12. Supports output of 9 types of function signals, with an output frequency of 0-10 MHz, amplitude of 0.1-3.0 Vpp, and duty cycle of 0-100%.13. By connecting to a computer via a USB data cable, waveforms can be exported and firmware can be upgraded to conduct secondary analysis of the waveforms.14. Built-in 5000mAh large-capacity rechargeable lithium battery, with a battery life of up to 5 hours.15. Adjustable anti-slip stand, providing stable support and ensuring safe use.16. Independent triggering button, making operation more convenient. Scope function parameters:1. Channels: Dual channels2. Sampling rate: 500 MSa/s3. Analog bandwidth: 100 MHz4. Storage depth: 10K, 100K, 1M5. Input impedance: 1 MΩ6. Time base range: 5 ns ~ 50 s7. Vertical sensitivity: 10 mV ~ 10 V/div8. Measured voltage: 800 V (at X10 setting)9. Trigger mode: automatic, normal, single10. Trigger type: rising edge, falling edge, bi-directional edge11. Display mode: point, vector, color temperature12. Coupling: AC/DC13. Afterglow: min/2s/5s/10s/20s/50s/0014. Operations: 6 basic operations15. Waveform screenshot saving: supported16. Export waveform graphics: supported17. Cursor measurement: supported Function parameters of the signal generator:1. Channel: Single channel2. Frequency: 0 - 10 MHz3. Amplitude: 0.1 - 3.0 Vpp4. Duty cycle: 0 - 100% Function parameters of the multimeter:1. DC Voltage: 1.9999V/19.999V/199.99V/1000V2. AC Voltage: 1.9999V/19.999V/199.99V/750.0V3. DC Current: 19.999mA/199.99mA/1.9999A/9.999A4. AC Current: 19.999mA/199.99mA/1.9999A/9.999A5. Resistance: 19.999ΜΩ/1.9999ΜΩ/199.99ΚΩ/19.999ΚΩ; 1.9999ΚΩ/199.99Ω6. Capacitance: 999.9uF/99.99uF/9.999uF/999.9nF/99.99nF/9.999nF; 9.999mF/99.99mF Packaging list:- 2D15P desktop oscilloscope- 2 x P6100 probes- Test leads for multimeter- Alligator clip probes- USB data cable- Instruction manualSpecification: Package Weight One Package Weight 1.10kgs / 2.42lb One Package Size 25cm * 12cm * 19cm / 9.84inch * 4.72inch * 7.48inch Qty per Carton 10 Carton Weight 12.10kgs / 26.68lb Carton Size 58cm * 38cm * 27cm / 22.83inch * 14.96inch * 10.63inch Loading Container 20GP: 448 cartons * 10 pcs = 4480 pcs 40HQ: 1040 cartons * 10 pcs = 10400 pcs

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1. Detection: 48mm Geiger counter tube2. Measurement range: 0.05uSv/h–10mSv/h3. Operating environment: -20°C to 50°C, humidity <95%RH (non-condensing)4. Battery capacity: 350mAh5. Battery life: About 15–24 hours6. Charging time: about 1 hour7. Charging port: Type-C8. Material: aluminum alloy9. Screen size: 0.96 inch TFT color display10. Size: about 1.6 x 2.7 x 15cmFeatures:1. Aluminum alloy shell with anodized finish2. Portable lanyard design, compact and easy to carry3. Utilizes GM counter tube for sensitive detection, ensuring measurement accuracy4. TFT high-definition display for easy viewing and reading in various lighting conditions5. Triple alarm alerts: audible, flashing light, and vibration; over-limit warning ensures timely safety alerts6. Powered by built-in lithium battery for energy efficiency, durability, and reusabilitySpecification: Package Weight One Package Weight 0.12kgs / 0.27lb One Package Size 16cm * 9cm * 5cm / 6.3inch * 3.54inch * 1.97inch Qty per Carton 100 Carton Weight 13.00kgs / 28.66lb Carton Size 41cm * 36cm * 31cm / 16.14inch * 14.17inch * 12.2inch Loading Container 20GP: 582 cartons * 100 pcs = 58200 pcs 40HQ: 1352 cartons * 100 pcs = 135200 pcs

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1. Detection: 48mm Geiger counter tube2. Measurement range: 0.05uSv/h–10mSv/h3. Operating environment: -20°C to 50°C, humidity <95%RH (non-condensing)4. Battery capacity: 350mAh5. Battery life: About 15–24 hours6. Charging time: about 1 hour7. Charging port: Type-C8. Material: aluminum alloy9. Screen size: 0.96 inch TFT color display10. Size: about 1.6 x 2.7 x 15cmFeatures:1. Aluminum alloy shell with anodized finish2. Portable lanyard design, compact and easy to carry3. Utilizes GM counter tube for sensitive detection, ensuring measurement accuracy4. TFT high-definition display for easy viewing and reading in various lighting conditions5. Triple alarm alerts: audible, flashing light, and vibration; over-limit warning ensures timely safety alerts6. Powered by built-in lithium battery for energy efficiency, durability, and reusabilitySpecification: Package Weight One Package Weight 0.12kgs / 0.27lb One Package Size 16cm * 9cm * 5cm / 6.3inch * 3.54inch * 1.97inch Qty per Carton 100 Carton Weight 13.00kgs / 28.66lb Carton Size 41cm * 36cm * 31cm / 16.14inch * 14.17inch * 12.2inch Loading Container 20GP: 582 cartons * 100 pcs = 58200 pcs 40HQ: 1352 cartons * 100 pcs = 135200 pcs

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1. Menu operation and color-screen HD display.2. Thickness measurement of non-magnetic coating on magnetic metal substrate surface and non-metallic coating on non-magnetic metal substrate.3. Two measurement methods: single measurement, continuous measurement.4. Three calibration modes: basic, offset, zero calibration.5. Metric/imperial unit and storage function.6. Screen rotation, charge protection, multi-interface displays,screen brightness selection.7. Bluetooth function(go with corresponding APP).8. Automatic shutdown.9. USB transport data(operating with PC software). Specification:1. Measurement range: 0~1500 um/0~59mil/0~1.5mm2. Resolution: (0.1 um(less than 100 um),1 um(more than or equal to 100 um))/0.1mil/0.001mm3. Measurement error: less than equal to 150 um , +/-5 um, more than 150 um , +/-(3%H+1 um)4. Minimum diameter of magnetic metal substrate: 12mm5. Minimum thickness of magnetic metal substrate: 0.5mm6. Minimum radius of curvature for magnetic convex substrate: 2mm7. Minimum radius of curvature for magnetic concave substrate: 11mm8. Minimum diameter of non-magnetic metal substrate: 50mm9. Minimum thickness of non-magnetic metal substrate: 0.5mm10. Size: 70.30x38.6x149.59mm11. Weight: 108gSpecification: Package Weight One Package Weight 0.72kgs / 1.60lb One Package Size 27cm * 20cm * 7cm / 10.63inch * 7.87inch * 2.76inch Qty per Carton 20 Carton Weight 16.18kgs / 35.67lb Carton Size 68cm * 46cm * 31cm / 26.77inch * 18.11inch * 12.2inch Loading Container 20GP: 275 cartons * 20 pcs = 5500 pcs 40HQ: 638 cartons * 20 pcs = 12760 pcs

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1. This multifunctional environmental monitor offers two configurations: a comprehensive 6-in-1 model detecting carbon monoxide (CO), oxygen (O2), atmospheric pressure, altitude, temperature, and humidity; and a 3-in-1 model focused on CO, temperature, and humidity detection. Designed for indoor air quality assessment and safety monitoring. 2. Over-limit alarm function – Triggers alerts when gas concentrations (e.g., CO) exceed safe levels, providing critical safety warnings. 3. Adjustable brightness and units – Screen backlight brightness can be adjusted for varying lighting conditions; supports Celsius/Fahrenheit temperature unit switching to accommodate user preferences. 4. Compact, portable, and rechargeable design – Weighs only 112g with dimensions of 70x70x30mm for high portability. Features a built-in 1600mAh lithium battery rechargeable via Type-C port. 5. Electrochemical sensor technology – Utilizes professional electrochemical sensors to ensure accurate and reliable readings. Technical Specifications: 1. Sensor type: Electrochemical 2. Measurement ranges: --Carbon monoxide (CO): 0–500 ppm --Oxygen (O2): 0–30.0 %Vol --Atmospheric pressure: 300–1100 hPa --Temperature: -10 to 50 degrees Celsius (14 to 122 degrees Fahrenheit) --Humidity: 20% to 85% RH 3. Power supply: 1600mAh lithium battery (Type-C charging) 4. Product weight: 112g (3.95 oz) 5. Product dimensions: 70 x 70 x 30 mm Package contents: Main unit, Type-C charging cable, English manualSpecification: Package Weight One Package Weight 0.19kgs / 0.43lb One Package Size 14cm * 9cm * 14cm / 5.51inch * 3.54inch * 5.51inch Qty per Carton 40 Carton Weight 7.50kgs / 16.53lb Carton Size 44cm * 25cm * 37cm / 17.32inch * 9.84inch * 14.57inch Loading Container 20GP: 655 cartons * 40 pcs = 26200 pcs 40HQ: 1521 cartons * 40 pcs = 60840 pcs

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1. This is a 5-in-1 wall-mounted environmental monitor, integrating noise decibel measurement, temperature, humidity, and time display functions. The device features a large LED screen and supports smart linkage via the Tuya app for real-time monitoring.2. The device simultaneously displays five key parameters on the LED screen: noise level (units: dBA), temperature, humidity, AQI, and current time. It visualizes noise intensity using color-coded emoticons (e.g., smiley face, neutral face, warning face) and bar graphs for intuitive data understanding.3. Smart Linkage Function: Through Tuya Smart WiFi integration, users can connect the monitor to the Tuya mobile app for remote access. This allows viewing real-time data anytime. The upgraded version additionally supports data storage/download and customizable threshold alerts (e.g., for noise or temperature limits).4. Space-saving design with a wall-mounted, slim profile (269 x 89 x 35 mm), featuring a clear LED screen for easy reading. The device runs on a built-in 2000mAh lithium battery. The basic model uses a DC interface, while the upgraded version features a Type-C interface for enhanced convenience.5. Three versions are available:--Celsius Basic Version: Displays temperature in Celsius only.--Fahrenheit Basic Version: Displays temperature in Fahrenheit only.--Upgraded Version: Adds data storage/download, threshold alert functions, and temperature unit switching (supports Celsius and Fahrenheit conversion). Parameters:1. Material: ABS plastic 2. Weight: 320 g (11.3 oz)3. Dimensions: 269 x 89 x 35 mm (10.6 x 3.5 x 1.4 in)4. Measurement Range: Noise: 30-130 dBA; Temperature: -10 to 50 Celsius (14 to 122 degrees Fahrenheit); Humidity: 20%-85% RH5. Sampling Time: 1.5 seconds6. Storage Temperature: -10 to 60 Celsius 7. Atmospheric Pressure: 12.5-15.4 PSI8. Battery: 2000mAh lithium batterySpecification: Package Weight One Package Weight 0.68kgs / 1.50lb One Package Size 35cm * 14cm * 6cm / 13.78inch * 5.51inch * 2.36inch Qty per Carton 20 Carton Weight 13.50kgs / 29.76lb Carton Size 44cm * 25cm * 37cm / 17.32inch * 9.84inch * 14.57inch Loading Container 20GP: 655 cartons * 20 pcs = 13100 pcs 40HQ: 1521 cartons * 20 pcs = 30420 pcs

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1. This four-in-one sound level meter is a portable monitoring device that simultaneously displays noise levels, temperature, humidity, and time on a clear LED screen. Suitable for both home and professional environments, it helps users effectively evaluate and manage acoustic conditions. 2. Four-parameter real-time display – The device concurrently shows noise decibel readings (dBA), temperature, humidity, and current time on the same LED screen, providing comprehensive environmental data. 3. Six-segment bar graph visualization – Features six-segment bar symbols to visualize noise levels in an intuitive bar graph format. Combined with digital readings, it offers immediate clarity on sound intensity variations. 4. Adjustable brightness and units – Screen brightness can be adjusted according to ambient light. Supports temperature unit toggling (Celsius/Fahrenheit) and time settings to accommodate personalized usage needs. 5. Built in 2000mAh rechargeable lithium battery, Type-C charging port for convenient power replenishment and extended battery life. Parameters: 1. Product weight: 208g (7.34 oz) 2. Display: LED screen 3. Measurement range: 30–130 dBA 4. Accuracy: +/-1.5 dBA 5. Atmospheric pressure: 12.5–15.4 PSI 6. Sampling time: 1.5 seconds 7. Temperature range: -10 to 50 degrees Celsius (14 to 122 degrees Fahrenheit) 8. Storage temperature: -10 to 60 degrees Celsius (14 to 140 degrees Fahrenheit) 9. Relative humidity: 20%–85% 10. Product dimensions: 160.5 x 90.5 x 50 mm (6.3 x 3.5 x 1.96 inches) Package contents: Main unit, Type-C charging cable, neutral English manualSpecification: Package Weight One Package Weight 0.40kgs / 0.89lb One Package Size 20cm * 13cm * 8cm / 7.87inch * 5.12inch * 3.15inch Qty per Carton 24 Carton Weight 10.70kgs / 23.59lb Carton Size 42cm * 38cm * 34cm / 16.54inch * 14.96inch * 13.39inch Loading Container 20GP: 491 cartons * 24 pcs = 11784 pcs 40HQ: 1140 cartons * 24 pcs = 27360 pcs

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1. This 10-in-1 air quality monitor precisely detects critical environmental parameters, including carbon dioxide (CO?), PM2.5, PM1.0, PM10, Air Quality Index (AQI), formaldehyde (HCHO), Total Volatile Organic Compounds (TVOC), temperature, and humidity. It features data storage and wired export functions to help users track air quality trends over time. 2. Comprehensive 10-parameter monitoring—The device synchronously tracks and displays real-time readings for CO?, particulate matter (PM1.0, PM2.5, PM10), AQI, formaldehyde, TVOC, temperature, and humidity on a clear LCD screen, offering a complete overview of indoor environments. 3. Data storage and PC export function—Built-in data logging automatically saves measurements at preset intervals. Historical data can be exported to a computer via the included Type-C cable for in-depth analysis and long-term trend tracking using software like Excel, moving beyond reliance on single instantaneous readings. 4. Advanced multi-sensor fusion technology—Combines professional-grade sensors: an NDIR (Non-Dispersive Infrared) sensor for CO? detection, a laser scattering sensor for particulate matter, and electrochemical/semiconductor sensors for formaldehyde and TVOC. These work with a high-performance processing chip to ensure reliable and accurate measurements. 5. Broad applicability and technical specifications—Supports wide measurement ranges using standardized units, suitable for homes, offices, schools, and other indoor environments. Technical Specifications: 1. Material: ABS 2. Product weight: 233g (8.2 oz) 3. Product dimensions: 164 x 74 x 26 mm (6.4 x 2.9 x 1 inches) 4. Power supply: Rechargeable lithium battery (1500mAh) 5. Sensor types: --CO? technology: Infrared (NDIR) --PM2.5 sensor technology: Laser scattering --HCHO (formaldehyde) technology: Electrochemical --TVOC technology: Semiconductor sensor 6. Measurement ranges: --AQI: 0–500 --CO?: 400–5000 ppm --PM2.5/1/10: 0–999 μg/m3 --HCHO (formaldehyde): 0.001–1.999 mg/m3 --TVOC: 0.001–9.999 mg/m3 7. Atmospheric pressure: 12.5–15.4 PSI 8. Sampling time: 1.5 seconds 9. Temperature range: -10 to 50 degrees Celsius (14 to 122 degrees Fahrenheit) 10. Relative humidity: 20%–85% 11. Storage temperature: -10 to 60 degrees Celsius (14 to 140 degrees Fahrenheit) 12. Humidity range: 20%–85% 13. Displayed parameters: CO?, PM2.5, PM1.0, PM10, HCHO (formaldehyde), TVOC, AQI, temperature, humidity, time 14. Storage capacity: Up to 4000 datasets 15. Storage format: CSV 16. Data management: When 4000 entries are reached, the device automatically overwrites the oldest data while continuing storage Package contents: Main unit, Type-C cable, universal English manualSpecification: Package Weight One Package Weight 0.50kgs / 1.11lb One Package Size 26cm * 20cm * 8cm / 10.24inch * 7.87inch * 3.15inch Qty per Carton 20 Carton Weight 12.20kgs / 26.90lb Carton Size 56cm * 29cm * 27cm / 22.05inch * 11.42inch * 10.63inch Loading Container 20GP: 608 cartons * 20 pcs = 12160 pcs 40HQ: 1411 cartons * 20 pcs = 28220 pcs

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1. This multifunctional environmental monitor offers two configurations: a comprehensive 6-in-1 model detecting carbon monoxide (CO), oxygen (O2), atmospheric pressure, altitude, temperature, and humidity; and a 3-in-1 model focused on CO, temperature, and humidity detection. Designed for indoor air quality assessment and safety monitoring. 2. Over-limit alarm function – Triggers alerts when gas concentrations (e.g., CO) exceed safe levels, providing critical safety warnings. 3. Adjustable brightness and units – Screen backlight brightness can be adjusted for varying lighting conditions; supports Celsius/Fahrenheit temperature unit switching to accommodate user preferences. 4. Compact, portable, and rechargeable design – Weighs only 112g with dimensions of 70x70x30mm for high portability. Features a built-in 1600mAh lithium battery rechargeable via Type-C port. 5. Electrochemical sensor technology – Utilizes professional electrochemical sensors to ensure accurate and reliable readings. Technical Specifications: 1. Sensor type: Electrochemical 2. Measurement ranges: --Carbon monoxide (CO): 0–500 ppm --Oxygen (O2): 0–30.0 %Vol --Atmospheric pressure: 300–1100 hPa --Temperature: -10 to 50 degrees Celsius (14 to 122 degrees Fahrenheit) --Humidity: 20% to 85% RH 3. Power supply: 1600mAh lithium battery (Type-C charging) 4. Product weight: 112g (3.95 oz) 5. Product dimensions: 70 x 70 x 30 mm Package contents: Main unit, Type-C charging cable, English manualSpecification: Package Weight One Package Weight 0.19kgs / 0.43lb One Package Size 14cm * 9cm * 14cm / 5.51inch * 3.54inch * 5.51inch Qty per Carton 40 Carton Weight 7.50kgs / 16.53lb Carton Size 44cm * 25cm * 37cm / 17.32inch * 9.84inch * 14.57inch Loading Container 20GP: 655 cartons * 40 pcs = 26200 pcs 40HQ: 1521 cartons * 40 pcs = 60840 pcs

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1. This 10-in-1 air quality monitor accurately detects critical environmental parameters, including carbon dioxide (CO?), PM2.5, PM1.0, PM10, Air Quality Index (AQI), formaldehyde (HCHO), Total Volatile Organic Compounds (TVOC), temperature, and humidity. It features data storage and wired export capabilities, enabling users to track air quality trends over time. 2. Comprehensive 10-parameter monitoring—The device synchronously tracks and displays real-time readings for CO?, particulate matter (PM1.0, PM2.5, PM10), AQI, formaldehyde, TVOC, temperature, and humidity on a clear LCD screen, providing a holistic overview of your indoor environment. 3. Data storage and PC export function—Built-in data logging automatically saves measurements at preset intervals. Using the included Type-C cable, historical data can be exported to a computer for in-depth analysis and long-term trend tracking in software like Excel, eliminating reliance on single instantaneous readings. 4. Advanced multi-sensor fusion technology—Utilizes professional-grade sensors: an NDIR (Non-Dispersive Infrared) sensor for CO? detection, a laser scattering sensor for particulate matter, and electrochemical/semiconductor sensors for formaldehyde and TVOC; paired with a high-performance processing chip to ensure reliable and precise measurements. 5. Portable charging design—Features a built-in rechargeable lithium battery (Type-C charging support) and compact dimensions of 145x78x97mm. Lightweight and portable, it can be easily moved between rooms or locations. 6. Broad applicability and technical specifications—Supports wide measurement ranges (e.g., CO? 400–5000 ppm, PM2.5 0–999 μg/m3) using standard units. Suitable for homes, offices, schools, and other indoor environments. Technical Specifications: 1. Weight: 235g (8.30 oz) 2. Dimensions: 145 x 78 x 97 mm 3. Display: LCD 4. Measured parameters: CO?, PM2.5, PM1.0, PM10, AQI, HCHO (formaldehyde), TVOC, temperature, humidity 5. CO? sensor principle: NDIR (infrared) 6. PM sensor principle: Laser scattering 7. CO? concentration unit: ppm 8. PM concentration unit: μg/m3 9. CO? measurement range: 400–5000 ppm 10. PM2.5/1.0/10 measurement range: 0–999 μg/m3 11. Temperature range: -10 to 50 degrees Celsius (14 to 122 degrees Fahrenheit) 12. Humidity range: 20%–85% 13. Sampling time: 1.5 seconds 14. Storage temperature: -10 to 60 degrees Celsius (14 to 140 degrees Fahrenheit) 15. Relative humidity: 20%–85% 16. Atmospheric pressure: 12.5–15.4 PSI 17. Material: ABS Included: Main unit, Type-C cable, universal English manualSpecification: Package Weight One Package Weight 0.48kgs / 1.07lb One Package Size 20cm * 14cm * 12cm / 7.87inch * 5.51inch * 4.72inch Qty per Carton 20 Carton Weight 10.50kgs / 23.15lb Carton Size 57cm * 29cm * 43cm / 22.44inch * 11.42inch * 16.93inch Loading Container 20GP: 375 cartons * 20 pcs = 7500 pcs 40HQ: 870 cartons * 20 pcs = 17400 pcs

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1. This four-in-one plug-in detector is your comprehensive monitoring solution for home or workplace. It continuously detects carbon monoxide (CO) and combustible gas (GAS) leaks while monitoring ambient temperature and humidity. Its clear display and alarm functions provide essential safety and environmental status alerts. 2. The devices LCD screen simultaneously displays all four parameters. Large digits and unique icons for CO, GAS, temperature, and humidity make data easily readable, even for non-professional users. 3. Equipped with reliable Winsen brand sensors, it offers high sensitivity and accurate detection. It features an intelligent dual-stage alarm system with different alerts for "routine warning" and "emergency alarm" levels, providing clear warnings based on severity. 4. Designed for long-term placement, it operates on standard plug-in power (no batteries required or included). The device allows you to freely switch the temperature display unit between Celsius and Fahrenheit as needed. Specifications: 1. Material: ABS 2. Weight: 84 g 3. Product dimensions: 106 x 55 x 53 mm 4. Detection range: --CO (0-500 ppm) --GAS (0-100% LEL) 5. Resolution: CO (1 ppm), GAS (1% LEL) 6. CO alarm thresholds: a) 50 PPM - 99 PPM: Routine alarm b) 100 PPM or above: Emergency alarm 7. Gas alarm thresholds: a) 4% - 7%: Routine alarm b) 8% or above: Emergency alarmSpecification: Package Weight One Package Weight 0.13kgs / 0.30lb One Package Size 15cm * 8cm * 5cm / 5.91inch * 3.15inch * 1.97inch Qty per Carton 120 Carton Weight 13.50kgs / 29.76lb Carton Size 57cm * 40cm * 41cm / 22.44inch * 15.75inch * 16.14inch Loading Container 20GP: 285 cartons * 120 pcs = 34200 pcs 40HQ: 662 cartons * 120 pcs = 79440 pcs

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1. This compact dust detector, with its small size and excellent precision detection capability, has become your reliable choice for maintaining air quality. It uses an advanced laser sensor to accurately measure the concentration of PM2.5 particles and dust in the air. Easy to operate with a simple interface, it starts with one press to display real-time PM2.5, temperature, and humidity data, allowing you to track air quality changes. Once exceeding the standard is detected, the device immediately alerts you to take prompt action to avoid risks. 2. Product dimensions: 70 x 70 x 32 mm 3. Product weight: 120 g 4. Display method: LCD screen 5. Display parameters: PM2.5, Temperature, Humidity 6. PM2.5 detection method: Laser scattering 7. PM2.5 concentration unit: ug/m3 8. PM2.5 detection range: 0-999 ug/m3 9. Temperature range: -10 to 50 degrees Celsius (14 to 122 degrees Fahrenheit) 10. Storage temperature: -10 to 60 degrees Celsius (14 to 140 degrees Fahrenheit) 11. Relative humidity: 20%-85% 12. Humidity range: 20%-85% 13. Power supply: 800 mAh rechargeable lithium batterySpecification: Package Weight One Package Weight 0.34kgs / 0.76lb One Package Size 12cm * 11cm * 8cm / 4.72inch * 4.33inch * 3.15inch Qty per Carton 40 Carton Weight 13.50kgs / 29.76lb Carton Size 51cm * 42cm * 27cm / 20.08inch * 16.54inch * 10.63inch Loading Container 20GP: 461 cartons * 40 pcs = 18440 pcs 40HQ: 1070 cartons * 40 pcs = 42800 pcs

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1. This 9-in-1 air quality monitor that simultaneously tracks formaldehyde (HCHO), PM1.0/PM2.5/PM10 particles, carbon dioxide (CO?), TVOC, temperature, humidity, and AQI in real time. Designed for both home and professional use, it features a color screen and customizable alarms to help you maintain optimal indoor air quality.2. A large color screen clearly shows all readings with easy-to-read fonts. The AQI color-coded warning bar makes air quality status instantly understandable for all ages.3. Simply turn it on to start monitoring immediately. The built-in 3000mAh lithium battery and Type-C charging port support portable use throughout your home, office, or vehicle.4. Set personalized alert levels for CO? concentrations. The alarm triggers when levels exceed your preset limits, helping you take timely action.5. Switch between Celsius and Fahrenheit temperature units, and choose between 12-hour or 24-hour time formats according to your preference.Specifications:1. Material: ABS Plastic2. Product Dimensions: 130 × 78 × 66 mm3. Product Weight: 302 g4. Battery: Built-in 3000mAh Lithium Battery5. Charging Port: Type-C6. Display Screen: HD Color Screen7. Interface Display: Main Interface / Historical Data / Settings InterfaceSpecification: Package Weight One Package Weight 0.40kgs / 0.89lb One Package Size 25cm * 20cm * 6cm / 9.84inch * 7.87inch * 2.36inch Qty per Carton 20 Carton Weight 14.00kgs / 30.86lb Carton Size 45cm * 35cm * 38cm / 17.72inch * 13.78inch * 14.96inch Loading Container 20GP: 445 cartons * 20 pcs = 8900 pcs 40HQ: 1034 cartons * 20 pcs = 20680 pcs

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1. This five-in-one plug-in detector is a multifunctional device designed to monitor key indoor environmental parameters. It tracks carbon monoxide (CO), combustible gas, air quality index (AQI), temperature, and humidity in real-time. Equipped with an alarm system for exceeding standards, it is powered by an external USB adapter, requires no batteries, and provides continuous protection and convenience. 2. To use, align the USB adapter with the detectors USB port and insert it, then connect to a standard AC power outlet (90-240V). After powering on, the display shows all parameters for 1 second and beeps. Touch screen operation is simple: lightly press to light up the screen and trigger a beep. 3. By lightly pressing, switch the temperature unit between Celsius and Fahrenheit. Double-tap to calibrate, long-press to exit settings. 4. If there is no operation for 3 consecutive minutes, the display dims automatically to save energy. The device operates continuously when plugged in, ensuring uninterrupted monitoring. Specifications: 1. Weight: 127.7 grams 2. Product material: ABS plastic 3. Power supply method: External plug-in 4. Sensor type: Electrochemical 5. Carbon monoxide detection range: 0 to 500 ppm 6. Combustible gas detection range: 0 to 100 percent LEL 7. Product dimensions: 64.44 mm x 64.44 mm x 79.8 mmSpecification: Package Weight One Package Weight 0.15kgs / 0.34lb One Package Size 12cm * 8cm * 10cm / 4.72inch * 3.15inch * 3.94inch Qty per Carton 60 Carton Weight 10.10kgs / 22.27lb Carton Size 32cm * 30cm * 47cm / 12.6inch * 11.81inch * 18.5inch Loading Container 20GP: 591 cartons * 60 pcs = 35460 pcs 40HQ: 1372 cartons * 60 pcs = 82320 pcs

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1. This four-in-one plug-in detector is your comprehensive monitoring solution for home or workplace. It continuously detects carbon monoxide (CO) and combustible gas (GAS) leaks while monitoring ambient temperature and humidity. Its clear display and alarm functions provide essential safety and environmental status alerts. 2. The devices LCD screen simultaneously displays all four parameters. Large digits and unique icons for CO, GAS, temperature, and humidity make data easily readable, even for non-professional users. 3. Equipped with reliable Winsen brand sensors, it offers high sensitivity and accurate detection. It features an intelligent dual-stage alarm system with different alerts for "routine warning" and "emergency alarm" levels, providing clear warnings based on severity. 4. Designed for long-term placement, it operates on standard plug-in power (no batteries required or included). The device allows you to freely switch the temperature display unit between Celsius and Fahrenheit as needed. Specifications: 1. Material: ABS 2. Weight: 84 g 3. Product dimensions: 106 x 55 x 53 mm 4. Detection range: --CO (0-500 ppm) --GAS (0-100% LEL) 5. Resolution: CO (1 ppm), GAS (1% LEL) 6. CO alarm thresholds: a) 50 PPM - 99 PPM: Routine alarm b) 100 PPM or above: Emergency alarm 7. Gas alarm thresholds: a) 4% - 7%: Routine alarm b) 8% or above: Emergency alarmSpecification: Package Weight One Package Weight 0.13kgs / 0.30lb One Package Size 15cm * 8cm * 5cm / 5.91inch * 3.15inch * 1.97inch Qty per Carton 120 Carton Weight 13.50kgs / 29.76lb Carton Size 57cm * 40cm * 41cm / 22.44inch * 15.75inch * 16.14inch Loading Container 20GP: 285 cartons * 120 pcs = 34200 pcs 40HQ: 662 cartons * 120 pcs = 79440 pcs

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1. This is a 5-in-1 wall-mounted environmental monitor, integrating noise decibel measurement, temperature, humidity, and time display functions. The device features a large LED screen and supports smart linkage via the Tuya app for real-time monitoring.2. The device simultaneously displays five key parameters on the LED screen: noise level (units: dBA), temperature, humidity, AQI, and current time. It visualizes noise intensity using color-coded emoticons (e.g., smiley face, neutral face, warning face) and bar graphs for intuitive data understanding.3. Smart Linkage Function: Through Tuya Smart WiFi integration, users can connect the monitor to the Tuya mobile app for remote access. This allows viewing real-time data anytime. The upgraded version additionally supports data storage/download and customizable threshold alerts (e.g., for noise or temperature limits).4. Space-saving design with a wall-mounted, slim profile (269 x 89 x 35 mm), featuring a clear LED screen for easy reading. The device runs on a built-in 2000mAh lithium battery. The basic model uses a DC interface, while the upgraded version features a Type-C interface for enhanced convenience.5. Three versions are available:--Celsius Basic Version: Displays temperature in Celsius only.--Fahrenheit Basic Version: Displays temperature in Fahrenheit only.--Upgraded Version: Adds data storage/download, threshold alert functions, and temperature unit switching (supports Celsius and Fahrenheit conversion). Parameters:1. Material: ABS plastic 2. Weight: 320 g (11.3 oz)3. Dimensions: 269 x 89 x 35 mm (10.6 x 3.5 x 1.4 in)4. Measurement Range: Noise: 30-130 dBA; Temperature: -10 to 50 Celsius (14 to 122 degrees Fahrenheit); Humidity: 20%-85% RH5. Sampling Time: 1.5 seconds6. Storage Temperature: -10 to 60 Celsius 7. Atmospheric Pressure: 12.5-15.4 PSI8. Battery: 2000mAh lithium batterySpecification: Package Weight One Package Weight 0.68kgs / 1.50lb One Package Size 35cm * 14cm * 6cm / 13.78inch * 5.51inch * 2.36inch Qty per Carton 20 Carton Weight 13.50kgs / 29.76lb Carton Size 44cm * 25cm * 37cm / 17.32inch * 9.84inch * 14.57inch Loading Container 20GP: 655 cartons * 20 pcs = 13100 pcs 40HQ: 1521 cartons * 20 pcs = 30420 pcs

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1. This is a 5-in-1 wall-mounted environmental monitor, integrating noise decibel measurement, temperature, humidity, and time display functions. The device features a large LED screen and supports smart linkage via the Tuya app for real-time monitoring.2. The device simultaneously displays five key parameters on the LED screen: noise level (units: dBA), temperature, humidity, AQI, and current time. It visualizes noise intensity using color-coded emoticons (e.g., smiley face, neutral face, warning face) and bar graphs for intuitive data understanding.3. Smart Linkage Function: Through Tuya Smart WiFi integration, users can connect the monitor to the Tuya mobile app for remote access. This allows viewing real-time data anytime. The upgraded version additionally supports data storage/download and customizable threshold alerts (e.g., for noise or temperature limits).4. Space-saving design with a wall-mounted, slim profile (269 x 89 x 35 mm), featuring a clear LED screen for easy reading. The device runs on a built-in 2000mAh lithium battery. The basic model uses a DC interface, while the upgraded version features a Type-C interface for enhanced convenience.5. Three versions are available:--Celsius Basic Version: Displays temperature in Celsius only.--Fahrenheit Basic Version: Displays temperature in Fahrenheit only.--Upgraded Version: Adds data storage/download, threshold alert functions, and temperature unit switching (supports Celsius and Fahrenheit conversion). Parameters:1. Material: ABS plastic 2. Weight: 320 g (11.3 oz)3. Dimensions: 269 x 89 x 35 mm (10.6 x 3.5 x 1.4 in)4. Measurement Range: Noise: 30-130 dBA; Temperature: -10 to 50 Celsius (14 to 122 degrees Fahrenheit); Humidity: 20%-85% RH5. Sampling Time: 1.5 seconds6. Storage Temperature: -10 to 60 Celsius 7. Atmospheric Pressure: 12.5-15.4 PSI8. Battery: 2000mAh lithium batterySpecification: Package Weight One Package Weight 0.68kgs / 1.50lb One Package Size 35cm * 14cm * 6cm / 13.78inch * 5.51inch * 2.36inch Qty per Carton 20 Carton Weight 13.50kgs / 29.76lb Carton Size 44cm * 25cm * 37cm / 17.32inch * 9.84inch * 14.57inch Loading Container 20GP: 655 cartons * 20 pcs = 13100 pcs 40HQ: 1521 cartons * 20 pcs = 30420 pcs

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1. Material: ABS/PVC/Silicone2. AC voltage: 0V-1000V3. DC voltage: 0V-750V4. Capacitance: 0nF-99.99mF5. Resistance: 0Ω-19.99MΩ6. Frequency: 9.999Hz-999.9kHz7. Count: 199998. Insulation resistance measurement: connect the test leads, select the voltage range on the dial, press TIME to set the time, press TEST to start, and the test is complete when the triangle indicator light goes out.9. Polarization index (PI) Measurement: the polarization index is measured because insulation is sensitive to temperature and humidity. Initial measurements are inaccurate due to interference current. Long-term measurement and calculation of this index are necessary to assess insulation quality and aging.10. Absorption ratio (DAR) Measurement: determines if moisture affects the insulation resistance value of the device by measuring the insulation resistance value after 1 minute and the insulation resistance absorption ratio after 15 seconds.11. Powered by three 3.7V 14500 batteries, removable and rechargeable with a charger. After fully charging, reinstall the batteries in the meter for recycling and extended battery life (batteries not included in shipment).12. If the meter remains inactive for approximately 15 minutes, it will automatically shut down and enter sleep mode, saving power and providing peace of mind.13. Weight: 375g14. Dimensions: 18x9x5.6cmSpecification: Package Weight One Package Weight 0.78kgs / 1.72lb One Package Size 27cm * 13cm * 7cm / 10.63inch * 5.12inch * 2.76inch Qty per Carton 8 Carton Weight 7.30kgs / 16.09lb Carton Size 29cm * 28cm * 30cm / 11.42inch * 11.02inch * 11.81inch Loading Container 20GP: 1094 cartons * 8 pcs = 8752 pcs 40HQ: 2541 cartons * 8 pcs = 20328 pcs

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1. Material: ABS2. Measuring range: 0~1000PPM3. Detected gases: R22/R32/R134a4. Preheating time (T90): 30 seconds5. Response time (T90): 10 seconds6. Sampling method: diffusion7. Temperature unit: Celsius/Fahrenheit8. When refrigerant leaks, the screen displays the concentration value. When the detected concentration exceeds the set alarm threshold, a rapid beep will sound and a flashing red light will illuminate.9. The extended flexible hose is made of metal and can be bent freely, making long-distance detection more convenient.10. Digital backlit high-definition screen, clearly visible even in dark environments.11. Battery-powered version: use a screwdriver to open the cover and replace with two 1.5V AAA batteries (not included).12. Rechargeable model: charges via USB cable. A red light indicates charging, and a green light indicates a full charge. It has a built-in 500mA high-capacity rechargeable lithium battery.13. Without any button operation, the instrument will automatically shut off after approximately 15 minutes. A short press of the APO button when turning it on will cancel the automatic shutdown.Specification: Package Weight One Package Weight 0.15kgs / 0.33lb One Package Size 23cm * 8cm * 5cm / 9.06inch * 3.15inch * 1.97inch Qty per Carton 48 Carton Weight 8.10kgs / 17.86lb Carton Size 48cm * 34cm * 32cm / 18.9inch * 13.39inch * 12.6inch Loading Container 20GP: 510 cartons * 48 pcs = 24480 pcs 40HQ: 1185 cartons * 48 pcs = 56880 pcs

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1. Material: ABS2. DC voltage: 0.8V-1000V3. AC voltage: 0.8V-750V4. AC/DC current: 0mA-10A5. Resistance: 0Ω-60MΩ6. Capacitance: 0.0mF-100.0mF7. Count: 60008. Automatic shutdown: the meter will automatically shut down after 15 minutes of inactivity to save power.9. Comfortable grip with anti-slip textured design for easier measurement; ergonomic design.10. High-definition backlit screen ensures clear visibility in complex environments; flashlight illumination eliminates the fear of not being able to see the measurement location.11. The meter is powered by a built-in 3.7V lithium battery and comes with a TYPE-C charging cable.12. Switch to LIVE mode and use the red probe to measure. When it touches the live wire, a progress bar will appear on the screen, accompanied by a beep; the neutral wire will not react.13. Connect the positive and negative terminals of the temperature wire to the instrument, and touch the other end to the object being measured. The real-time temperature will be displayed, providing clear data and easy operation.14. Switch to the NCV setting. When AC voltage is detected, a beeping alarm will sound; the closer the object, the more rapid the alarm.15. Dimensions: 14.5 x 7 x 1.9 cm16. Weight: 162gSpecification: Package Weight One Package Weight 0.41kgs / 0.90lb One Package Size 15cm * 8cm * 5cm / 5.91inch * 3.15inch * 1.97inch Qty per Carton 72 Carton Weight 30.30kgs / 66.80lb Carton Size 47cm * 34cm * 32cm / 18.5inch * 13.39inch * 12.6inch Loading Container 20GP: 521 cartons * 72 pcs = 37512 pcs 40HQ: 1210 cartons * 72 pcs = 87120 pcs

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1. Material: ABS2. DC voltage: 0.8V-1000V3. AC voltage: 0.8V-750V4. AC/DC current: 0mA-10A5. Resistance: 0Ω-60MΩ6. Capacitance: 0.0mF-100.0mF7. Count: 60008. Automatic shutdown: the meter will automatically shut down after 15 minutes of inactivity to save power.9. Comfortable grip with anti-slip textured design for easier measurement; ergonomic design.10. High-definition backlit screen ensures clear visibility in complex environments; flashlight illumination eliminates the fear of not being able to see the measurement location.11. The meter is powered by a built-in 3.7V lithium battery and comes with a TYPE-C charging cable.12. Switch to LIVE mode and use the red probe to measure. When it touches the live wire, a progress bar will appear on the screen, accompanied by a beep; the neutral wire will not react.13. Connect the positive and negative terminals of the temperature wire to the instrument, and touch the other end to the object being measured. The real-time temperature will be displayed, providing clear data and easy operation.14. Switch to the NCV setting. When AC voltage is detected, a beeping alarm will sound; the closer the object, the more rapid the alarm.15. Dimensions: 14.5 x 7 x 1.9 cm16. Weight: 162gSpecification: Package Weight One Package Weight 0.41kgs / 0.90lb One Package Size 15cm * 8cm * 5cm / 5.91inch * 3.15inch * 1.97inch Qty per Carton 72 Carton Weight 30.30kgs / 66.80lb Carton Size 47cm * 34cm * 32cm / 18.5inch * 13.39inch * 12.6inch Loading Container 20GP: 521 cartons * 72 pcs = 37512 pcs 40HQ: 1210 cartons * 72 pcs = 87120 pcs

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1. Material: ABS2. Measuring range: 0~1000PPM3. Detected gases: R22/R32/R134a4. Preheating time (T90): 30 seconds5. Response time (T90): 10 seconds6. Sampling method: diffusion7. Temperature unit: Celsius/Fahrenheit8. When refrigerant leaks, the screen displays the concentration value. When the detected concentration exceeds the set alarm threshold, a rapid beep will sound and a flashing red light will illuminate.9. The extended flexible hose is made of metal and can be bent freely, making long-distance detection more convenient.10. Digital backlit high-definition screen, clearly visible even in dark environments.11. Battery-powered version: use a screwdriver to open the cover and replace with two 1.5V AAA batteries (not included).12. Rechargeable model: charges via USB cable. A red light indicates charging, and a green light indicates a full charge. It has a built-in 500mA high-capacity rechargeable lithium battery.13. Without any button operation, the instrument will automatically shut off after approximately 15 minutes. A short press of the APO button when turning it on will cancel the automatic shutdown.Specification: Package Weight One Package Weight 0.17kgs / 0.38lb One Package Size 23cm * 8cm * 5cm / 9.06inch * 3.15inch * 1.97inch Qty per Carton 48 Carton Weight 9.30kgs / 20.50lb Carton Size 48cm * 34cm * 32cm / 18.9inch * 13.39inch * 12.6inch Loading Container 20GP: 510 cartons * 48 pcs = 24480 pcs 40HQ: 1185 cartons * 48 pcs = 56880 pcs

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1. Screen display: LCD backlit screen2. Unit switching: μT/mG °C/°F3. Power supply: 1.5V AAA batteries x 24. Electric field radiation: 1V/m-1999V/m5. Magnetic field radiation: 0.01μT/99.99μT6. Reading display: 3-1/2 digit LCD display; test bandwidth: 5Hz-3500MHz7. Sampling time: Approx. 0.4 seconds8. Test mode: average/peak mode9. Automatic shutdown function, more environmentally friendly and energy-saving, longer battery life and durability10. Man-made electromagnetic radiation sources include all electrical appliances. Taking precautions and using household appliances properly can effectively prevent and reduce electromagnetic radiation.11. High-voltage line electromagnetic radiation: detects immediately upon power-on. Hold the instrument and slowly bring the front sensing area close to the electromagnetic radiation source being tested.12. Mainly used for detecting electromagnetic fields, magnetic fields, and temperature in living and working environments.13. Net weight: 53g14. Dimensions: 150.5x32.8x25.5mmSpecification: Package Weight One Package Weight 0.20kgs / 0.45lb One Package Size 18cm * 5cm * 5cm / 7.09inch * 1.97inch * 1.97inch Qty per Carton 84 Carton Weight 17.90kgs / 39.46lb Carton Size 38cm * 37cm * 32cm / 14.96inch * 14.57inch * 12.6inch Loading Container 20GP: 592 cartons * 84 pcs = 49728 pcs 40HQ: 1375 cartons * 84 pcs = 115500 pcs

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