Consumer Electronics

Features:1. The LC29H series can track L1+L5 dual-frequency and multi-GNSS signals, reducing multipath effects in urban canyons and improving positioning accuracy while maintaining low power consumption.2. Built-in LNA and SAW filters to achieve high sensitivity and strong anti-interference ability.3. Use dual-frequency positioning and RTK technology to meet centimeter-level high-precision positioning requirements.4. Suitable for real-time tracking systems and sharing economy applications, helping to develop applications such as drones, smart agricultural machinery, and shared two-wheelers.5. Standard Raspberry Pi 40PIN GPIO expansion header, supports Raspberry Pi series boards and Jetson Nano6. Supports simultaneous tracking of L1+L5 dual-frequency satellite signals, reducing the multipath effect in urban canyons and improving positioning accuracy.7. Supports concurrent reception of multiple GNSS systems (GPS, BDS, GLONASS, Galileo and QZSS) while maintaining low power consumption8. Built-in low-noise amplifier and acoustic surface filter to achieve -165dBm high sensitivity and enhanced anti-interference performance9. Supports multi-frequency active interference cancellation, effectively suppressing or eliminating narrowband signal (WiFi/2/3/4/5G) interference to ensure navigation accuracy10. A-GNSS (Assisted GNSS) support, reducing the cold start time to first fix (TTFF) at power-on to 5 seconds11. Support QGNSS software to facilitate setting various module functions12. Onboard battery holder, supports ML1220 rechargeable battery, used to save ephemeris information and hot start13. There are 4 LED indicators on the board to indicate the working status of the module.14. LC29H(AA) GPS HAT has the following features:-Support positioning enhancement systems (WAAS, EGNOS, MSAS and GAGAN) to improve positioning performance in service areas-Supports EASY technology to use stored ephemeris, almanac data and other information for positioning when there is no signal, improving positioning and first positioning time15. LC29H(DA) GPS/RTK HAT has the following features:-Supports fast convergence dual-frequency RTK centimeter-level positioning, suitable for high-precision positioning of terminal equipment16. LC29H(BS) GPS/RTK HAT has the following features:-Supports GNSS original observation and correction data output, suitable for establishing RTK base stationsProduct parameters:1. Frequency bandGPS/QZSS: L1C/A, L5Beidou system: B1I, B2aGalileo: E1, E5aGLONASS: L12. Number of concurrent GNSSGPS/QZSS+Beidou+Galileo+GLONASS3. SensitivityTracking navigation: -165dBmReacquisition: -159dBm, -157dBm, -159dBmCold start: -147dBm, -145dBm, -147dBm4. Dynamic performanceAcceleration (maximum): 4gAltitude (maximum): 10000mSpeed (maximum): 500m/s5. Communication interfaceUART (9600~3000000bps, default 115200bps), I2C (maximum 400KHz)6. Protocol: NMEA 0183 V4.10, RTCM 3.x7. Power supply: 5V8. Total current: less than 40mA@5V (continuous mode)9. Operating temperature: -40 to 85 degrees Celsius10. Product size: 65 x 30.5mm11. Weight: 126gPacking list:-LC29H GPS hat x 1-2x20PIN female socket x 1-GPS external antenna (D) x 1-IPEX 1 to SMA cable 17cm x 1-Screw pack x1Specification: Package Weight One Package Weight 0.18kgs / 0.41lb One Package Size 15cm * 10cm * 4cm / 5.91inch * 3.94inch * 1.57inch Qty per Carton 48 Carton Weight 9.74kgs / 21.47lb Carton Size 32cm * 32cm * 34cm / 12.6inch * 12.6inch * 13.39inch Loading Container 20GP: 765 cartons * 48 pcs = 36720 pcs 40HQ: 1778 cartons * 48 pcs = 85344 pcs

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Features:1. The LC29H series can track L1+L5 dual-frequency and multi-GNSS signals, reducing multipath effects in urban canyons and improving positioning accuracy while maintaining low power consumption.2. Built-in LNA and SAW filters to achieve high sensitivity and strong anti-interference ability.3. Use dual-frequency positioning and RTK technology to meet centimeter-level high-precision positioning requirements.4. Suitable for real-time tracking systems and sharing economy applications, helping to develop applications such as drones, smart agricultural machinery, and shared two-wheelers.5. Standard Raspberry Pi 40PIN GPIO expansion header, supports Raspberry Pi series boards and Jetson Nano6. Supports simultaneous tracking of L1+L5 dual-frequency satellite signals, reducing the multipath effect in urban canyons and improving positioning accuracy.7. Supports concurrent reception of multiple GNSS systems (GPS, BDS, GLONASS, Galileo and QZSS) while maintaining low power consumption8. Built-in low-noise amplifier and acoustic surface filter to achieve -165dBm high sensitivity and enhanced anti-interference performance9. Supports multi-frequency active interference cancellation, effectively suppressing or eliminating narrowband signal (WiFi/2/3/4/5G) interference to ensure navigation accuracy10. A-GNSS (Assisted GNSS) support, reducing the cold start time to first fix (TTFF) at power-on to 5 seconds11. Support QGNSS software to facilitate setting various module functions12. Onboard battery holder, supports ML1220 rechargeable battery, used to save ephemeris information and hot start13. There are 4 LED indicators on the board to indicate the working status of the module.14. LC29H(AA) GPS HAT has the following features:-Support positioning enhancement systems (WAAS, EGNOS, MSAS and GAGAN) to improve positioning performance in service areas-Supports EASY technology to use stored ephemeris, almanac data and other information for positioning when there is no signal, improving positioning and first positioning time15. LC29H(DA) GPS/RTK HAT has the following features:-Supports fast convergence dual-frequency RTK centimeter-level positioning, suitable for high-precision positioning of terminal equipment16. LC29H(BS) GPS/RTK HAT has the following features:-Supports GNSS original observation and correction data output, suitable for establishing RTK base stationsProduct parameters:1. Frequency bandGPS/QZSS: L1C/A, L5Beidou system: B1I, B2aGalileo: E1, E5aGLONASS: L12. Number of concurrent GNSSGPS/QZSS+Beidou+Galileo+GLONASS3. SensitivityTracking navigation: -165dBmReacquisition: -159dBm, -157dBm, -159dBmCold start: -147dBm, -145dBm, -147dBm4. Dynamic performanceAcceleration (maximum): 4gAltitude (maximum): 10000mSpeed (maximum): 500m/s5. Communication interfaceUART (9600~3000000bps, default 115200bps), I2C (maximum 400KHz)6. Protocol: NMEA 0183 V4.10, RTCM 3.x7. Power supply: 5V8. Total current: less than 40mA@5V (continuous mode)9. Operating temperature: -40 to 85 degrees Celsius10. Product size: 65 x 30.5mm11. Weight: 126gPacking list:-LC29H GPS hat x 1-2x20PIN female socket x 1-GPS external antenna (D) x 1-IPEX 1 to SMA cable 17cm x 1-Screw pack x1Specification: Package Weight One Package Weight 0.18kgs / 0.41lb One Package Size 15cm * 10cm * 4cm / 5.91inch * 3.94inch * 1.57inch Qty per Carton 48 Carton Weight 9.74kgs / 21.47lb Carton Size 32cm * 32cm * 34cm / 12.6inch * 12.6inch * 13.39inch Loading Container 20GP: 765 cartons * 48 pcs = 36720 pcs 40HQ: 1778 cartons * 48 pcs = 85344 pcs

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Features:1. The LC29H series can track L1+L5 dual-frequency and multi-GNSS signals, reducing multipath effects in urban canyons and improving positioning accuracy while maintaining low power consumption.2. Built-in LNA and SAW filters to achieve high sensitivity and strong anti-interference ability.3. Use dual-frequency positioning and RTK technology to meet centimeter-level high-precision positioning requirements.4. Suitable for real-time tracking systems and sharing economy applications, helping to develop applications such as drones, smart agricultural machinery, and shared two-wheelers.5. Standard Raspberry Pi 40PIN GPIO expansion header, supports Raspberry Pi series boards and Jetson Nano6. Supports simultaneous tracking of L1+L5 dual-frequency satellite signals, reducing the multipath effect in urban canyons and improving positioning accuracy.7. Supports concurrent reception of multiple GNSS systems (GPS, BDS, GLONASS, Galileo and QZSS) while maintaining low power consumption8. Built-in low-noise amplifier and acoustic surface filter to achieve -165dBm high sensitivity and enhanced anti-interference performance9. Supports multi-frequency active interference cancellation, effectively suppressing or eliminating narrowband signal (WiFi/2/3/4/5G) interference to ensure navigation accuracy10. A-GNSS (Assisted GNSS) support, reducing the cold start time to first fix (TTFF) at power-on to 5 seconds11. Support QGNSS software to facilitate setting various module functions12. Onboard battery holder, supports ML1220 rechargeable battery, used to save ephemeris information and hot start13. There are 4 LED indicators on the board to indicate the working status of the module.14. LC29H(AA) GPS HAT has the following features:-Support positioning enhancement systems (WAAS, EGNOS, MSAS and GAGAN) to improve positioning performance in service areas-Supports EASY technology to use stored ephemeris, almanac data and other information for positioning when there is no signal, improving positioning and first positioning time15. LC29H(DA) GPS/RTK HAT has the following features:-Supports fast convergence dual-frequency RTK centimeter-level positioning, suitable for high-precision positioning of terminal equipment16. LC29H(BS) GPS/RTK HAT has the following features:-Supports GNSS original observation and correction data output, suitable for establishing RTK base stationsProduct parameters:1. Frequency bandGPS/QZSS: L1C/A, L5Beidou system: B1I, B2aGalileo: E1, E5aGLONASS: L12. Number of concurrent GNSSGPS/QZSS+Beidou+Galileo+GLONASS3. SensitivityTracking navigation: -165dBmReacquisition: -159dBm, -157dBm, -159dBmCold start: -147dBm, -145dBm, -147dBm4. Dynamic performanceAcceleration (maximum): 4gAltitude (maximum): 10000mSpeed (maximum): 500m/s5. Communication interfaceUART (9600~3000000bps, default 115200bps), I2C (maximum 400KHz)6. Protocol: NMEA 0183 V4.10, RTCM 3.x7. Power supply: 5V8. Total current: less than 40mA@5V (continuous mode)9. Operating temperature: -40 to 85 degrees Celsius10. Product size: 65 x 30.5mm11. Weight: 126gPacking list:-LC29H GPS hat x 1-2x20PIN female socket x 1-GPS external antenna (D) x 1-IPEX 1 to SMA cable 17cm x 1-Screw pack x1Specification: Package Weight One Package Weight 0.19kgs / 0.41lb One Package Size 15cm * 10cm * 4cm / 5.91inch * 3.94inch * 1.57inch Qty per Carton 48 Carton Weight 9.74kgs / 21.47lb Carton Size 32cm * 32cm * 34cm / 12.6inch * 12.6inch * 13.39inch Loading Container 20GP: 765 cartons * 48 pcs = 36720 pcs 40HQ: 1778 cartons * 48 pcs = 85344 pcs

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This board can be used with Arduino /Raspberry Pi boardModule itself can adapt 3.3V and 5V systems without level conversion.Features1. Within -40 degree C to +85 degree C temperature range, timing accuracy is maintained at +/- 5ppm (+/- 0.432 sec / day).2. Provide battery backup for continuous timing.3. Low-power.4. Device package and function compatible with the DS3231.5. Complete clock functions include seconds, minutes, hours, day, date, month and year timing, and provide valid to 2100.6. Two calendar alarm.7. 1Hz and 32.768kHz output.8. Reset button and button input.9. High-speed (400kHz) I2C serial bus.10. +2.3 V to +5.5 V supply voltage.11. +/-3 degree C accuracy digital temperature sensor.12. -40 degree C to +85 degree C operating temperature range.13. 16-pin SO (300mil) packageSpecification1. Brand: Landa tianrui2. Model: LDTR-WG02113. Quantity: 1 piece4. Color: Black5. Material: PCB6. Chipset: DS32317. Dimensions: 2.2 cm x 1.2 cm x 0.5 cm8. Weight: 5g9. Package List: 1 x DS3231 Clock ModuleSpecification: Package Weight One Package Weight 0.02kgs / 0.03lb One Package Size 5cm * 3cm * 1cm / 1.97inch * 1.18inch * 0.39inch Qty per Carton 6240 Carton Weight 15.00kgs / 33.07lb Carton Size 60cm * 39cm * 40cm / 23.62inch * 15.35inch * 15.75inch Loading Container 20GP: 284 cartons * 6240 pcs = 1772160 pcs 40HQ: 661 cartons * 6240 pcs = 4124640 pcs

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1. Concealed card holder, zero protrusion, integrated with Raspberry Pi development board, beautiful and convenient for experiment. 2. Let the Raspberry Pi development board have more extra storage space. 3. Secure backup, do not worry about data loss. 4. Read and write speed is fast. Specification: 1. Concealed. 2. Is the metal border: No. 3. Size: 24x16mm. 4. Applicable objects: Strawberry pie development board or other equipment (computer) with suitable SD card slot size. Please note: This ferrule is only suitable for devices that use the SD card slot connector, not for the TF card slot connector.Specification: Package Weight One Package Weight 0.03kgs / 0.07lb One Package Size 9cm * 6cm * 1.3cm / 3.54inch * 2.36inch * 0.51inch Qty per Carton 500 Carton Weight 13.50kgs / 29.76lb Carton Size 42cm * 32cm * 47cm / 16.54inch * 12.6inch * 18.5inch Loading Container 20GP: 422 cartons * 500 pcs = 211000 pcs 40HQ: 980 cartons * 500 pcs = 490000 pcs

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1. 5MP night vision camera with 2 PCS IR sensor lights, support infrared night vision function. 2. Support 1080P resolution. 3. Focal adjustable, focal length: 3.6mm. 4. With 4 screw holes: The screw hole on the camera is used to both fix the infrared lights and though the power for the lights. You can use a small screwdriver to install the lights easily. 5. Support 3.3V power output.Specification: General Model C0285 Weight 19g Resolution 1080p Sensor OV5647 Camera 5MP CCD Size 1/4inch Aperture (F) 1.8 Focal Length 3.6mm adjustable Package Include Package Contents 1 x Camera Package Weight One Package Weight 0.05kgs / 0.12lb One Package Size 11.5cm * 6.6cm * 3.5cm / 4.53inch * 2.6inch * 1.38inch Qty per Carton 100 Carton Weight 4.30kgs / 9.48lb Carton Size 37cm * 25cm * 35cm / 14.57inch * 9.84inch * 13.78inch Loading Container 20GP: 823 cartons * 100 pcs = 82300 pcs 40HQ: 1912 cartons * 100 pcs = 191200 pcs

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1. This case is specifically designed for Raspberry pi 3. 2. The shell is made up of 9 layers acrylic boards and has different ports and button position. 3. It have many ventilation ports in side and covering, good heat dispersion. 4. Special design to install a cooling fan. 5. The cooling fan helps to exhaust the hot air from inside the device case. Improve air flow in your system. Cool down the entire case. Extend your system life span and make the device work better.Specification: General Model C0363 Material Plastic, Acrylic Size 10x6.8x3.7cm Weight 70g Rated Voltage DC 5V (Fan) Current 0.2A (Fan) Package Include Package Contents 1 x Cooling Fan 1 x Screws Parts 1 x Acrylic case Package Weight One Package Weight 0.10kgs / 0.22lb One Package Size 10.5cm * 7.5cm * 3.5cm / 4.13inch * 2.95inch * 1.38inch Qty per Carton 100 Carton Weight 8.20kgs / 18.08lb Carton Size 40cm * 23cm * 37cm / 15.75inch * 9.06inch * 14.57inch Loading Container 20GP: 783 cartons * 100 pcs = 78300 pcs 40HQ: 1818 cartons * 100 pcs = 181800 pcs

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1. This case is specifically designed for Raspberry pi 3. 2. Made of ABS material. 3. Has different ports and button position design. 4. It have many ventilation ports in side and covering, good heat dispersion. 5. Special design to install a cooling fan (Not included).Specification: General Model C0665 Material ABS Package Include Package Contents 1 x Protective Case Package Weight One Package Weight 0.05kgs / 0.11lb One Package Size 10cm * 8cm * 5cm / 3.94inch * 3.15inch * 1.97inch Qty per Carton 60 Carton Weight 1.98kgs / 4.37lb Carton Size 42cm * 22cm * 32cm / 16.54inch * 8.66inch * 12.6inch Loading Container 20GP: 901 cartons * 60 pcs = 54060 pcs 40HQ: 2093 cartons * 60 pcs = 125580 pcs

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1. This case is specifically designed for Raspberry pi 3. 2. The shell is made up of 9 layers acrylic boards and has different ports and button position. 3. It have many ventilation ports in side and covering, good heat dispersion. 4. Special design to install a cooling fan (Not included).Specification: General Model C0905 Material Acrylic Size 9.8x6.8x3.4cm Weight 69g Package Include Package Contents 1 x Acrylic case Package Weight One Package Weight 0.09kgs / 0.20lb One Package Size 10.5cm * 7.5cm * 3.5cm / 4.13inch * 2.95inch * 1.38inch Qty per Carton 100 Carton Weight 8.00kgs / 17.64lb Carton Size 40cm * 23cm * 37cm / 15.75inch * 9.06inch * 14.57inch Loading Container 20GP: 783 cartons * 100 pcs = 78300 pcs 40HQ: 1818 cartons * 100 pcs = 181800 pcs

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1. The product is used for Raspberry Pi 3 / 2. 2. It dissipates heat off your Raspberry Pi in high efficiency, improving its performance. 3. The cooling heatsink have special stickers affixed, just tear off the paper, easy to install.Specification: General Material Aluminium Size 14.5x14.5x6mm, 9x9x5mm, 9x9x5mm Weight 3g Package Include Package Contents 3 x Cooling Heatsink Package Weight One Package Weight 0.01kgs / 0.03lb One Package Size 3cm * 2.5cm * 0.7cm / 1.18inch * 0.98inch * 0.28inch Qty per Carton 500 Carton Weight 3.50kgs / 7.72lb Carton Size 17cm * 16cm * 15cm / 6.69inch * 6.3inch * 5.91inch Loading Container 20GP: 6535 cartons * 500 pcs = 3267500 pcs 40HQ: 15172 cartons * 500 pcs = 7586000 pcs

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1. Type: T Shape GPIO Expansion Board V1 2. T Shape GPIO Expansion Board V1 Works with Raspberry Pi B+ 3. Easy and convenient to useSpecification: General Types T Shape GPIO Expansion Board V1 Size 10*8.0*2.0 cm Weight 95 g Package Weight One Package Weight 0.10kgs / 0.23lb One Package Size 10cm * 8cm * 2cm / 3.94inch * 3.15inch * 0.79inch Qty per Carton 200 Carton Weight 21.90kgs / 48.28lb Carton Size 40cm * 50cm * 20cm / 15.75inch * 19.69inch * 7.87inch Loading Container 20GP: 666 cartons * 200 pcs = 133200 pcs 40HQ: 1547 cartons * 200 pcs = 309400 pcs

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1) High precision sensor able to detect slight gas leakage 2) Indicating the leakage via alarming bulb 3) Quick find the resource of leakage 4) Monophony earphone socket 5) 16 inch long goose neck 6) High sensitivity, quick response 7) Continuous operating time: 8 hours 8) Warm-up time: 60 seconds (25℃, 60%RH environment) 9) Operating environment temperature: 0-52℃ 10) Alarm limit: Lel 10% of methane 11) Response time: instantaneous 12) Power & alarm LED indication 13) Low battery indication: 3V 14) Power: 3*1.5V LR 14 batteries (not included) 15) Detectable control 16) Sensor reset 17) The following list only show partial gases can be detectable: natural gas, CO, Propane, Gasoline, Butane, Spraying fuel, Methane, Sulgureted hydrogen, Propanol, Smoke, Ethanol, Industrial solvent, Ammonia, Paint, Steam, NaphthaSpecification: Package Weight One Package Weight 0.49kgs / 1.07lb One Package Size 26.7cm * 12.2cm * 7cm / 10.51inch * 4.8inch * 2.76inch Qty per Carton 20 Carton Weight 10.50kgs / 23.15lb Carton Size 50cm * 29cm * 37cm / 19.69inch * 11.42inch * 14.57inch Loading Container 20GP: 497 cartons * 20 pcs = 9940 pcs 40HQ: 1153 cartons * 20 pcs = 23060 pcs

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specification1. Measurement range: 0~100%2. Sensor type: contact combustion type3. Response time: about 10 seconds4. Working voltage: 3.6V5.Alam limit: 10% methane6. Working environment temperature: 0~50°C7. Low battery indicator: 3.3v8. Working current: 200mA9. Power: 3x1.2v NiMH batteryPackage Included1 flammable gas detector (without battery)1 USB cable1 x manualSpecification: General Certificate CE Package Weight One Package Weight 0.67kgs / 1.48lb One Package Size 27.3cm * 19.6cm * 6.6cm / 10.75inch * 7.72inch * 2.6inch Qty per Carton 30 Carton Weight 15.00kgs / 33.07lb Carton Size 76cm * 54cm * 18cm / 29.92inch * 21.26inch * 7.09inch Loading Container 20GP: 360 cartons * 30 pcs = 10800 pcs 40HQ: 838 cartons * 30 pcs = 25140 pcs

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specification1. Material: plastic2. Detection gas: combustible gas3. Sensitivity: 50ppm methane (adjustable)4. Alarm mode: sound and light alarm5. Sensor type: low power semiconductor6. Warm-up time: 60 seconds (25 ° C, 60% ambient temperature)7. Response time: 2 seconds8. Operation cycle: continuous operation9. Battery life: 8 hours of continuous use (slightly changed according to working conditions)10. Sensor size: 30 cm11. Alarm limit: 10% methane12. Working temperature: 0~50°13. Reduce battery indication: 3 ± 0.2V14. Battery type: 3 * 1.5V AA battery (not included)15. Working current: about 150mA Package Included1 flammable gas detector (without battery)1 x manualSpecification: General Certificate CE Package Weight One Package Weight 0.26kgs / 0.56lb One Package Size 24.3cm * 14.7cm * 4cm / 9.57inch * 5.79inch * 1.57inch Qty per Carton 70 Carton Weight 15.00kgs / 33.07lb Carton Size 90cm * 59cm * 17cm / 35.43inch * 23.23inch * 6.69inch Loading Container 20GP: 295 cartons * 70 pcs = 20650 pcs 40HQ: 685 cartons * 70 pcs = 47950 pcs

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Description:1. Type: Portable2. Measurement object: flammable gas such as natural gas, gas, biogas, etc.3. Size: 156x66x31mm4. Power: 3x1.5V AA battery(not included the battery)5. Sensitivity: adjustable, at least 50PPM (methane)6. Warm-up time: <20 seconds (assuming 25 Celsius Degrees, 60 RH environment)7. Continuous work: 4 hours8. Low battery prompt: power indicator flashes (replace battery)9. Operating environment: 0~50 Celsius DegreesSpecification: Package Weight One Package Weight 0.32kgs / 0.70lb One Package Size 18cm * 9cm * 5cm / 7.09inch * 3.54inch * 1.97inch Qty per Carton 98 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 98 pcs = 17346 pcs 40HQ: 412 cartons * 98 pcs = 40376 pcs

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1. Gas measurement: The sensor warms up when the countdown is started. The refresh rate is 1HZ. Do not charge during the measurement of combustible gas, otherwise it may explode. 2. High/low alarm: 4 default high/low alarms, 4 types of alarms, and the alarm sound can be turned off. 3. Data recording: 1000 pieces of data can be recorded. The default interval of data recording is 5 seconds, which can be set in inL of the setting mode. When the interval is set to 0 seconds, the data logging function fails. The delete operation will delete all recorded data. 4. Temperature display: set the unit to Celsius or Fahrenheit, the default unit is Celsius 5. Automatic shutdown: automatic shutdown without operation within 30 minutes. This feature is turned on by default. 6. Battery capacity: It is forbidden to start the unit to avoid measurement errors or explosion. If the battery is low, it may turn off automatically. Charging time: about 4 hours. Discharge time: about 8 hours. 7. Zero point calibration: It is recommended to calibrate the device at zero point or zero offset every month to ensure the high accuracy of the measurement (please ensure that the battery power is above 2bar) calibration, and place it in the air for a period of time after powering on. Make sure that the device body temperature is slightly higher than the ambient temperature. 8. Temperature compensation: the measured data is compensated within the range of -20 to 50 degrees Celsius 9. Software error: The machine crashes/shutdown indicates that an error occurred during the operation. If the software is forced to shut down, please press the on/off button to activate the device 10. Adopt high-quality gas sensor, safe and reliable, accurate measurement and stable performance. 11. It has excellent sensitivity and repeatability, is easy to use and maintain, and meets the requirements for high reliability of equipment in industrial field safety monitoring. 12. The shell is made of high-strength engineering plastics and composite non-slip rubber, dust-proof and explosion-proof, high strength, smooth hand feeling 13. Battery type: 3. 7V rechargeable lithium battery 14. LCD displays real-time data and system status 15. Response time (90%): less than 30 seconds 16. Size: 71x153x49mm 17. Weight: 218.7gSpecification: Package Weight One Package Weight 0.87kgs / 1.91lb One Package Size 27cm * 18cm * 5cm / 10.63inch * 7.09inch * 1.97inch Qty per Carton 10 Carton Weight 11.35kgs / 25.02lb Carton Size 52cm * 41cm * 32cm / 20.47inch * 16.14inch * 12.6inch Loading Container 20GP: 390 cartons * 10 pcs = 3900 pcs 40HQ: 907 cartons * 10 pcs = 9070 pcs

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1. Color screen display, humanized interface 2. Bilingual options: Chinese/English 3. Three types of alarms: sound/light/vibration 4. Data recording and viewing function, continuous recording of 120,000 pieces of data 5. Using high-quality gas sensor, safe and reliable, accurate measurement, stable performance 6. It has excellent sensitivity and repeatability, easy to use and maintain, and meets the requirements of high-reliability equipment for industrial site safety monitoring 7. The shell is made of high-strength engineering plastics and composite non-slip rubber, dust-proof and explosion-proof, high strength and smooth feel 8. Measuring range: 0-100%LEL 9. Resolution: 0.1 10. Response time (90%): less than 30 seconds 11. Working voltage: DC 3.7V (lithium battery capacity 1800mAh) 12. Battery model: LP103450-1800mAh 13. Charging time: 6-8h 14. Machine time: more than 8 hours (with slight change in working status) 15. Size: 71x153x49mm 16. Weight: about 215.4gSpecification: General Certificate CE Package Weight One Package Weight 0.85kgs / 1.87lb One Package Size 27cm * 20cm * 7cm / 10.63inch * 7.87inch * 2.76inch Qty per Carton 10 Carton Weight 9.55kgs / 21.05lb Carton Size 27cm * 40cm * 35cm / 10.63inch * 15.75inch * 13.78inch Loading Container 20GP: 705 cartons * 10 pcs = 7050 pcs 40HQ: 1637 cartons * 10 pcs = 16370 pcs

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1. Multiple alarm modes, real-time feedback of gas test2. 2.3-inch high-definition color screen display, multi-interface display, all data are clear at a glance3. Built-in smart menu, convenient operation4. Fast warm-up, support Chinese and English switching menu, multiple alarms, highly sensitive probe5. Rugged aluminum portable tool case6. Sturdy alligator clip on the back7. Measuring range: Combustible gas, oxygen, carbon monoxide8. Battery capacity: 1800mah / 3.7v9. Power supply mode: USB charging10. USB port with protective cover11. Description: GT8211: Oxygen content detector, GT8212: Carbon monoxide detector, GT8210: Flammable gas detector12. Application: Gas detection13. Alarm method: Sound, light, vibrationSpecification: Package Weight One Package Weight 0.90kgs / 1.99lb One Package Size 18.5cm * 28cm * 8cm / 7.28inch * 11.02inch * 3.15inch Qty per Carton 20 Carton Weight 19.00kgs / 41.89lb Carton Size 42cm * 57cm * 40cm / 16.54inch * 22.44inch * 15.75inch Loading Container 20GP: 278 cartons * 20 pcs = 5560 pcs 40HQ: 646 cartons * 20 pcs = 12920 pcs

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1. Multiple alarm modes, real-time feedback of gas test2. 2.3-inch high-definition color screen display, multi-interface display, all data are clear at a glance3. Built-in smart menu, convenient operation4. Fast warm-up, support Chinese and English switching menu, multiple alarms, highly sensitive probe5. Rugged aluminum portable tool case6. Sturdy alligator clip on the back7. Measuring range: Combustible gas, oxygen, carbon monoxide8. Battery capacity: 1800mah / 3.7v9. Power supply mode: USB charging10. USB port with protective cover11. Description: GT8211: Oxygen content detector, GT8212: Carbon monoxide detector, GT8210: Flammable gas detector12. Application: Gas detection13. Alarm method: Sound, light, vibrationSpecification: Package Weight One Package Weight 0.90kgs / 1.99lb One Package Size 18.5cm * 28cm * 8cm / 7.28inch * 11.02inch * 3.15inch Qty per Carton 20 Carton Weight 19.00kgs / 41.89lb Carton Size 42cm * 57cm * 40cm / 16.54inch * 22.44inch * 15.75inch Loading Container 20GP: 278 cartons * 20 pcs = 5560 pcs 40HQ: 646 cartons * 20 pcs = 12920 pcs

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1. LED digital display2. Intelligent alarm system3. Greenhouse compensation calibration4. LCD screen + backlight mode5. Multiple detection, stable and reliable6. Built-in 1200 mAh lithium battery7. Charging interface: Type-c 5V8. The large screen displays power, CO2, temperature and humidity9. 1S/time real-time refresh, fast detection can obtain more stable measurement values10. Application areas: agricultural planting, greenhouse fruits, warehouses, raw material processing11. Press and hold the power button for 3 seconds to turn on or off, and automatically detect the surrounding environment after turning on12. Using semiconductor sensors to calculate the carbon dioxide concentration, stable performance, low consumption and long service life13. Voltage: 2.0V14. Size: 9x7x3.5cm15. Weight: 0.105kgSpecification: Package Weight One Package Weight 0.20kgs / 0.44lb One Package Size 14cm * 9.7cm * 4.8cm / 5.51inch * 3.82inch * 1.89inch Qty per Carton 80 Carton Weight 17.00kgs / 37.48lb Carton Size 52cm * 42cm * 32cm / 20.47inch * 16.54inch * 12.6inch Loading Container 20GP: 381 cartons * 80 pcs = 30480 pcs 40HQ: 885 cartons * 80 pcs = 70800 pcs

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1. Multiple anti-interference2. Power supply: 5V1A3. Type-c charging port4. Air convection technology5. Greenhouse compensation calibration6. Measurement accuracy: 1ppm7. Working voltage: DC5V8. Built-in 1200mA lithium battery9. Display mode: smart color screen10. Working temperature: 10-50 degrees Celsius11. Low battery warning, indicator light warning12. CO2, HCHO, TVOC exceed standard alarm13. Adopt scientific mesh design, fast heat dissipation, accurate detection data14. Measurement object: carbon dioxide, HCHO, TVOC, temperature and humidity15. Dimensions: 67x32x98mm16. Weight: 0.3kgSpecification: Package Weight One Package Weight 0.35kgs / 0.78lb One Package Size 18cm * 10cm * 6cm / 7.09inch * 3.94inch * 2.36inch Qty per Carton 40 Carton Weight 15.00kgs / 33.07lb Carton Size 42cm * 32cm * 37cm / 16.54inch * 12.6inch * 14.57inch Loading Container 20GP: 536 cartons * 40 pcs = 21440 pcs 40HQ: 1244 cartons * 40 pcs = 49760 pcs

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1. LED digital display 2. Intelligent alarm system 3. Greenhouse Compensation Calibration 4. LED digital LCD screen + backlight mode, intuitive reading 5. Multiple detection, stable and reliable 6. Built-in 1200mAh lithium battery, standby time is about 240-360 minutes 7. Charging port: Type-C 5V 8. Large screen displays power, CO2, temperature and humidity 9. 1S/time real-time refresh, fast detection can obtain relatively stable measurement value 10. Application areas: agricultural planting, greenhouse fruit, warehouse heavy ground, raw material processing 11. Press and hold the power button for 3 seconds to turn on or off, and automatically detect the surrounding environment after turning on 12. Using infrared sensors, high precision, more accurate determination of air quality problems 13. Voltage: 2.0V 14. Size: 9x7x3.5cm 15. Weight: 0.105kgSpecification: Package Weight One Package Weight 0.14kgs / 0.31lb One Package Size 15cm * 10cm * 5cm / 5.91inch * 3.94inch * 1.97inch Qty per Carton 96 Carton Weight 13.90kgs / 30.64lb Carton Size 47cm * 42cm * 42cm / 18.5inch * 16.54inch * 16.54inch Loading Container 20GP: 321 cartons * 96 pcs = 30816 pcs 40HQ: 746 cartons * 96 pcs = 71616 pcs

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1. LED digital display 2. Intelligent alarm system 3. Greenhouse Compensation Calibration 4. LED digital LCD screen + backlight mode, intuitive reading 5. Multiple detection, stable and reliable 6. Built-in 1200mAh lithium battery, standby time is about 240-360 minutes 7. Charging port: Type-C 5V 8. Large screen displays power, CO2, temperature and humidity 9. 1S/time real-time refresh, fast detection can obtain relatively stable measurement value 10. Application areas: agricultural planting, greenhouse fruit, warehouse heavy ground, raw material processing 11. Press and hold the power button for 3 seconds to turn on or off, and automatically detect the surrounding environment after turning on 12. Using infrared sensors, high precision, more accurate determination of air quality problems 13. Voltage: 2.0V 14. Size: 9x7x3.5cm 15. Weight: 0.105kgSpecification: Package Weight One Package Weight 0.14kgs / 0.31lb One Package Size 15cm * 10cm * 5cm / 5.91inch * 3.94inch * 1.97inch Qty per Carton 96 Carton Weight 13.90kgs / 30.64lb Carton Size 47cm * 42cm * 42cm / 18.5inch * 16.54inch * 16.54inch Loading Container 20GP: 321 cartons * 96 pcs = 30816 pcs 40HQ: 746 cartons * 96 pcs = 71616 pcs

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1. Material: ABS2. Detection gas: natural gas (Gas-GH4) liquefied gas (LPG) combustible gas, etc.3. POST time: within 25 seconds4. Response time: within 20 seconds5. Alarm response range: 500ppm (CH4 methane) red light on6. Power supply: 1.5V 2 AA batteries (not included)7. Automatic shutdown without alarm after 5 minutes8. Highly sensitive sensor, which can stably detect the weak signal change of the sensor9. LED alarm light, the red light is on when gas is detected, the battery needs to be replaced when the green light is on, and the fault is indicated when the yellow light is on10. Dimensions: 263x36x36mm11. Weight: 60 gramsSpecification: Package Weight One Package Weight 0.09kgs / 0.20lb One Package Size 30cm * 8cm * 5cm / 11.81inch * 3.15inch * 1.97inch Qty per Carton 336 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 336 pcs = 59472 pcs 40HQ: 412 cartons * 336 pcs = 138432 pcs

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Features:1. Fast response, low power consumption, simple detection circuit, good stability, long life2. Split universal flexible probe, easy to touch all kinds of environment3. MP-901 sensor, high sensitivity, fast response4. The heater and metal oxide semiconductor gas sensing layers were fabricated on both sides of the micro-AI2O3 ceramic substrate by using a multi-layer thick film manufacturing process and encapsulated in a metal shell5. High strength ABS engineering plastics, no fear of environmental challenges6. Adopt air filter to reduce the disturbance of water, air and dust7. Rich alarm methods (beeping, lighting, vibration) , gas leak real-time feedbackParameters:1. Detection gases: CFCs: R11, R12, R500, R503, etc; HCFCs: R22, R123, R124, R502, etc; HCFCs: R134a, R404a, R125, etc.2. Operating voltage: DC4.5 V3. Power mode: 3 x AAA alkaline dry cells (not included)4. Run time: more than 6 hours5. Display: LCD liquid crystal display with automatic backlighting6. Direct reading: sensor Concentration Reading, battery charge, concentration unit, temperature7. Alarm settings: low-alarm function, high-alarm function settings8. Warm-up time: 30 seconds9. Response time: less than 10 seconds10. Measurement range: 0-1000 ppm11. Resolution: 1 ppm12. Sampling mode: diffusion mode13. Alarm: sound, light-emitting diode, vibration indication alarm, voltage under-voltage indication14. Audio tip: the higher the frequency of beeps, the higher the concentration15. Service temperature range: -10-50 degrees celsius16. Size: 156 x 64 x 27mm17. Weight: about 200gApplicable to the following gases and occasions:1. Detection of halogen gases (including chlorine and fluorine)2. Detecting ethylene oxide and ethanol gas for medical use3. Detect Halon gas in the fire extinguishing system4. Testing of air-conditioning, refrigeration systems and refrigerant recovery equipmentSpecification: Package Weight One Package Weight 0.30kgs / 0.67lb One Package Size 18cm * 8cm * 4cm / 7.09inch * 3.15inch * 1.57inch Qty per Carton 98 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 98 pcs = 17346 pcs 40HQ: 412 cartons * 98 pcs = 40376 pcs

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1. Measuring range: 0-9999ppm 2. Measurement accuracy: 10% FS 3. Voltage: 3x1.5V 4. Power supply: 2xAAA batteries 5. Battery type: 3x1.5V AAA 6. It is widely used in gas pipeline leak detection, household gas prevention, gold mine field, tunnel mine operation oil and gas exploitation field, dangerous goods storage warehouse, etc. 7. Standard industrial design, fast response, double alarm. 8. Accurate detection, easy operation. 9. Full-view high-definition reverse display color screen, clearly visible in dark environments. 10. Two-color injection molding, strong and durable, strong body, non-slip and anti-fall. Note: Shipment without batteriesSpecification: General Certificate CE , FCC Package Weight One Package Weight 0.38kgs / 0.84lb One Package Size 28cm * 12cm * 5cm / 11.02inch * 4.72inch * 1.97inch Qty per Carton 60 Carton Weight 26.80kgs / 59.08lb Carton Size 58cm * 38cm * 52cm / 22.83inch * 14.96inch * 20.47inch Loading Container 20GP: 232 cartons * 60 pcs = 13920 pcs 40HQ: 540 cartons * 60 pcs = 32400 pcs

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Features: 1. It adopts excellent electrochemical detection module, which has high accuracy and stable performance, and can accurately detect carbon dioxide value. Large screen design, measurement data at a glance 2. Using semiconductor and infrared detection technology, real-time refresh once per second 3. Using superior electrochemical detection module, high accuracy, stable performance, can accurately detect carbon dioxide 4. Strong anti-interference ability, low power consumption and long service life 5. The product does not need to be calibrated, it can be detected when it is turned on, and can accurately detect carbon dioxide 6. Wall-mounted design, suitable for more scenes, more practical 7. There are hundreds of ventilation holes on the back of the shell, which can not only accelerate the convection between the air and the machine, so as to achieve effective detection, but also provide a good heat dissipation effect 8. Wide application: agricultural planting, greenhouse vegetables, production warehouse, material processing, home interior decoration, etc. 9. 6 in 1: PM2.5, CO2, TVOC, HCHO, formaldehyde, temperature and humidity 10. Real-time monitoring, sound and light alarm, automatic calibration, power indicator Specification: 1. Display mode: LCD color screen + backlight display 2. Power supply mode: USB charging/built-in lithium battery 3. Battery capacity: 1200mah lithium battery 4. CO2 detection: 0-5000PPM 5. CO2 measurement accuracy: 10PPM 6. Temperature measurement range: 0 to 70 degrees Celsius 7. PM2.5: 0-999ug/m3 8. Formaldehyde: 0-9999ug/m3 9. TVOC: 0-9999ug/m3 10. Humidity: 0-99% RH 11. Working voltage: 5V 12. Sensor: infrared PM2.5 sensor/semiconductor sensor 13. Size: 90x70x35mm 14. Net weight: 140g 15. Gross weight: 200gSpecification: Package Weight One Package Weight 0.20kgs / 0.45lb One Package Size 14cm * 13cm * 5cm / 5.51inch * 5.12inch * 1.97inch Qty per Carton 146 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 146 pcs = 25842 pcs 40HQ: 412 cartons * 146 pcs = 60152 pcs

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1. Cold, warm, dry and wet, clear at a glance2. Temperature and humidity monitoring3. Sound and light alarm, comfort expression + indicator light4. Honeycomb vent, one port, two functions; the vent of the product can detect the concentration of CO and accelerate the heat dissipation of the product5. LCD large high-definition display screen, the backlight is clearly visible at night6. Backlight dual mode, short light for 10 minutes/constant light7. Easy and convenient, two placement methods, with a tether hole on the top of the product, and a folding stand on the back8. Working temperature: 0-50 degrees Celsius9. Measuring range: 40 square meters10. Scope of application: kitchens, mines, chemicals, power plants, metallurgy, underground pipelines and other places11. Charging voltage: 5V/1A12. Battery capacity: 2400mah13. Power supply mode: USB charging/built-in lithium battery14. Size: 83 x 83 x 32mm15. Weight: about 150gSpecification: Package Weight One Package Weight 0.22kgs / 0.49lb One Package Size 9cm * 9cm * 10cm / 3.54inch * 3.54inch * 3.94inch Qty per Carton 162 Carton Weight 30.00kgs / 66.14lb Carton Size 49cm * 49cm * 54cm / 19.29inch * 19.29inch * 21.26inch Loading Container 20GP: 205 cartons * 162 pcs = 33210 pcs 40HQ: 477 cartons * 162 pcs = 77274 pcs

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1. Measuring range: %LEL: 0-20%; PPM: 0-9999PPM2. Ambient temperature range: 0-60 degrees Celsius (TA702B)3. Display mode: TA702A: analog bar display; TA702B: analog bar and numerical display4. Sensitivity: 50PPM (methane)5. Alarm mode: display + audible and visual alarms6. Automatic zeroing: automatic zeroing in the preheating process (in clean air)7. Sensor: semiconductor sensor8. Detecting gas (partial list): acetone, acetylene, alcohol, ammonia, benzene, butane, ethanol, cyclic ammonia ethane, gasoline, hexane, hydrogen, methane, naphtha, natural gas, paint thinner, propane, solvents, etc.9. Automatic shutdown: 15 minutes (can be manually shut down)10. Battery capacity: 3.7V 1000mAh lithium battery11. Charging port: Micro USB12. Use of the environment: -10-50 degrees Celsius, 80% relative humidity, indoor altitude of less than 2000m13. Storage environment: -10-50 degrees Celsius, within 70% relative humidity14. Packing List: Main unit x 1, cloth bag x 1, manual x 1, charging cable x 115. Overall size: about 19.2 x 7 x 3.5cm16. Gooseneck length: about 20cm17. Weight: about 275gFeatures:1. Highly sensitive response speed for combustible gas leakage detection in pipelines/equipment/regulators.2. Probe with illumination design, high brightness, dim scene can be turned on the lighting3. 10-hole gas channel design, gas can be quickly inflow, fast and agile response4. Concentration alarm5. VA high-definition color screen display, with background lighting (always on)Specification: Package Weight One Package Weight 0.50kgs / 1.09lb One Package Size 26cm * 15cm * 5cm / 10.24inch * 5.91inch * 1.97inch Qty per Carton 30 Carton Weight 15.50kgs / 34.17lb Carton Size 54cm * 27cm * 50cm / 21.26inch * 10.63inch * 19.69inch Loading Container 20GP: 365 cartons * 30 pcs = 10950 pcs 40HQ: 849 cartons * 30 pcs = 25470 pcs

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1. Measuring range: %LEL: 0-20%; PPM: 0-9999PPM2. Ambient temperature range: 0-60 degrees Celsius (TA702B)3. Display mode: TA702A: analog bar display; TA702B: analog bar and numerical display4. Sensitivity: 50PPM (methane)5. Alarm mode: display + audible and visual alarms6. Automatic zeroing: automatic zeroing in the preheating process (in clean air)7. Sensor: semiconductor sensor8. Detecting gas (partial list): acetone, acetylene, alcohol, ammonia, benzene, butane, ethanol, cyclic ammonia ethane, gasoline, hexane, hydrogen, methane, naphtha, natural gas, paint thinner, propane, solvents, etc.9. Automatic shutdown: 15 minutes (can be manually shut down)10. Battery capacity: 3.7V 1000mAh lithium battery11. Charging port: Micro USB12. Use of the environment: -10-50 degrees Celsius, 80% relative humidity, indoor altitude of less than 2000m13. Storage environment: -10-50 degrees Celsius, within 70% relative humidity14. Packing List: Main unit x 1, cloth bag x 1, manual x 1, charging cable x 115. Overall size: about 19.2 x 7 x 3.5cm16. Gooseneck length: about 20cm17. Weight: about 275gFeatures:1. Highly sensitive response speed for combustible gas leakage detection in pipelines/equipment/regulators.2. Probe with illumination design, high brightness, dim scene can be turned on the lighting3. 10-hole gas channel design, gas can be quickly inflow, fast and agile response4. Concentration alarm5. VA high-definition color screen display, with background lighting (always on)Specification: Package Weight One Package Weight 0.50kgs / 1.11lb One Package Size 26cm * 15cm * 5cm / 10.24inch * 5.91inch * 1.97inch Qty per Carton 30 Carton Weight 15.50kgs / 34.17lb Carton Size 54cm * 27cm * 50cm / 21.26inch * 10.63inch * 19.69inch Loading Container 20GP: 365 cartons * 30 pcs = 10950 pcs 40HQ: 849 cartons * 30 pcs = 25470 pcs

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1. Compact and convenient, can work at any time2. Can detect multiple combustible gases to eliminate potential safety hazards3. 3-color indicator design. Simple and easy to understand4. Can carry out air wet temperature test, high precision sensing5. Digital display design, replaceable battery, longer service lifeParameters:1. Detecting gas: hydrogen, carbon monoxide, methane, ethane, propane, butane, ethylene, propylene, butylene, acetylene, propyne, butyne, hydrogen sulfide, phosphine2. Detection range: 300-10000ppm (reference medium for methane)3. Sensitivity: 50ppm4. Response time: 2 seconds5. Warm-up time: 30 seconds6. Alarm mode: analog strip, LED lights, beeps7. Range: humidity measurement: 0-100% RH; temperature measurement: -10-60 degrees celsius / 14-140 degrees fahrenheit8. Resolution: humidity measurement: 1 percent RH; temperature measurement: 0.1 degrees celsius / 0.2 degrees fahrenheit9. Accuracy: humidity measurement: about 5 percent RH; temperature measurement: about 0.1 degrees celsius / 0.2 degrees fahrenheit10. Automatic shutdown: about 5 minutes11. Power supply: 2 x 1.5V AAA batteries (not included in shipment)12. Size: 170 x 28 x 31mm13. Weight: 67gPacking list:- Main unit x 1- Storage bag x 1- Instruction manual x 1Specification: Package Weight One Package Weight 0.17kgs / 0.38lb One Package Size 22cm * 8cm * 5cm / 8.66inch * 3.15inch * 1.97inch Qty per Carton 60 Carton Weight 11.20kgs / 24.69lb Carton Size 48cm * 37cm * 34cm / 18.9inch * 14.57inch * 13.39inch Loading Container 20GP: 441 cartons * 60 pcs = 26460 pcs 40HQ: 1025 cartons * 60 pcs = 61500 pcs

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1. Display: LCD display2. Sensor: NTC sensor, gas sensor3. Sampling rate: 1 second4. Power supply: built-in 3.7V 400mA lithium battery5. Working height: 2000m6. Measuring range: 0-50 degrees Celsius7. Resolution: 1 degree Celsius8. Detection range: 300-10000ppm9. Accuracy: -+2 degrees Celsius10. Response time: 2 seconds11. Warm-up time: 30 seconds12. Alarm mode: analog strip, backlight, motor vibration and buzzer13. Automatic shutdown time: about 5 minutes14. Working temperature: 0-40 degrees Celsius15. Storage temperature: -20 to 60 degrees Celsius16. Can quickly and accurately detect flammable gas leaks on gas pipelinesSpecification: Package Weight One Package Weight 0.11kgs / 0.25lb One Package Size 19cm * 4cm * 3cm / 7.48inch * 1.57inch * 1.18inch Qty per Carton 240 Carton Weight 27.40kgs / 60.41lb Carton Size 40cm * 50cm * 32cm / 15.75inch * 19.69inch * 12.6inch Loading Container 20GP: 416 cartons * 240 pcs = 99840 pcs 40HQ: 967 cartons * 240 pcs = 232080 pcs

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1. Sensitivity: 50ppm 2. Reflect time: 2 seconds 3. High sensitivity and fast response 4. 16-inch long gooseneck 5. Good quality and long service lifeSpecification: Package Weight One Package Weight 0.34kgs / 0.74lb One Package Size 14.7cm * 5.2cm * 24.1cm / 5.79inch * 2.05inch * 9.49inch Qty per Carton 20 Carton Weight 9.44kgs / 20.81lb Carton Size 45cm * 42cm * 25cm / 17.72inch * 16.54inch * 9.84inch Loading Container 20GP: 564 cartons * 20 pcs = 11280 pcs 40HQ: 1310 cartons * 20 pcs = 26200 pcs

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Pure carbon monoxide (CO) is colorless, odorless, and non-irritant gas: molecular weight: 28. 01; Density: 1. 250g/ l; freezing point: - 207C; boiling point: - 190C. Its solubility in water is quite low, but it dissolves instantly in ammonia water. Air mixed explosion limit is between 12. 5% and 74%. After entering human body, carbon monoxide will combine with hemoglobin in blood, making the hemoglobin not able to combine with oxygen, which causes oxygen deficit to organism organization, leading to death from suffocation. Therefore, carbon monoxide is toxic, and is colorless, odorless, and tasteless, which is easy to be ignored and thus causing poisoning. The carbon monoxide detector can detect the concentration of carbon monoxide gas, and observe the value of carbon monoxide gas concentration at any time. It has a very clear large LCD screen, sound and light alarm prompts, to ensure that dangerous gases can be detected under very unfavorable working environments and prompt operators to prevent them in time. It is widely used in petroleum, chemical, coal, metallurgy, papermaking, fire fighting, municipal administration, telecommunications, food, textile and other industries. 1. Gas Tested: CO in the air 2. Measuring Range: 0-1000ppm 3. Resolution: 1ppm 4. Minimum Reading: 1ppm 5. Basic Error: +/-5%(f.s), +/-10ppm 6. Response Time: 60 seconds 7. Sensor Type: Electrochemical CO sensorSpecification: General Model GM8805 Material ABS Resolution 1ppm Measure Range 0-1000ppm Operating Temperature 0 ~ 50 Degree Celsius Accuracy +/- 5%(f.s) or +/-10ppm Power Supply 2*1.5V AAA batteries (not included) Size 55.7*29.9*135.5mm Display Size 1.8 inch Weight 104g Package Include Package Contents 1 x Manual 1 x Monoxide CO Tester Package Weight One Package Weight 0.33kgs / 0.72lb One Package Size 18cm * 13cm * 6cm / 7.09inch * 5.12inch * 2.36inch Qty per Carton 40 Carton Weight 9.50kgs / 20.94lb Carton Size 62cm * 37cm * 27cm / 24.41inch * 14.57inch * 10.63inch Loading Container 20GP: 430 cartons * 40 pcs = 17200 pcs 40HQ: 999 cartons * 40 pcs = 39960 pcs

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Pure carbon monoxide (CO) is colorless, odorless, and non-irritant gas: molecular weight: 28. 01; Density: 1. 250g/ l; freezing point: - 207C; boiling point: - 190C. Its solubility in water is quite low, but it dissolves instantly in ammonia water. Air mixed explosion limit is between 12. 5% and 74%. After entering human body, carbon monoxide will combine with hemoglobin in blood, making the hemoglobin not able to combine with oxygen, which causes oxygen deficit to organism organization, leading to death from suffocation. Therefore, carbon monoxide is toxic, and is colorless, odorless, and tasteless, which is easy to be ignored and thus causing poisoning. The carbon monoxide detector can detect the concentration of carbon monoxide gas, and observe the value of carbon monoxide gas concentration at any time. It has a very clear large LCD screen, sound and light alarm prompts, to ensure that dangerous gases can be detected under very unfavorable working environments and prompt operators to prevent them in time. It is widely used in petroleum, chemical, coal, metallurgy, papermaking, fire fighting, municipal administration, telecommunications, food, textile and other industries. 1. Gas Tested: CO in the air 2. Measuring Range: 0-1000ppm 3. Resolution: 1ppm 4. Minimum Reading: 1ppm 5. Basic Error: +/-5%(f.s), +/-10ppm 6. Response Time: 60 seconds 7. Sensor Type: Electrochemical CO sensorSpecification: General Model GM8805 Material ABS Resolution 1ppm Measure Range 0-1000ppm Operating Temperature 0 ~ 50 Degree Celsius Accuracy +/- 5%(f.s) or +/-10ppm Power Supply 2*1.5V AAA batteries (not included) Size 55.7*29.9*135.5mm Display Size 1.8 inch Weight 104g Package Include Package Contents 1 x Manual 1 x Monoxide CO Tester Package Weight One Package Weight 0.33kgs / 0.72lb One Package Size 18cm * 13cm * 6cm / 7.09inch * 5.12inch * 2.36inch Qty per Carton 40 Carton Weight 9.50kgs / 20.94lb Carton Size 62cm * 37cm * 27cm / 24.41inch * 14.57inch * 10.63inch Loading Container 20GP: 430 cartons * 40 pcs = 17200 pcs 40HQ: 999 cartons * 40 pcs = 39960 pcs

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DIY Supplies:Electrical Model Number:CO Gas Analyzer The Carbon monoxide gas detector is a portable detector for detecting carbon monoxide (CO) gas. It can continuously monitor the CO gas concentration in the surrounding environment, once the gas concentration reaches the level of the alarm, the alarm will sound, light and vibration.High precision portable CO gas tester with compact size and light weight is easy to carry and operate. It is widely used in petroleum, chemical, coal, metallurgy, paper, fire, municipal, telecommunications, food, textile and other industries.Features:1. Portable detector for detecting carbon monoxide(CO) gas.2. Can continuously monitor the CO gas concentration in the surrounding environment.3. Sound alarm works when CO gas concentration reaches the level of the alarm.4. Compact size, light weight, easy to carry and operate.5. Professional and accurate measurement.6. Large LCD display and degree C / degree F switch.7. Can set concentration of alarm value.9. Auto power off in 10 minutes without any operation.Specifications:1. Brand Name: SMART SENSOR 2. Color: Orange + Black3. Material: ABS Plastic4. Sensor Type: Stablized Electrochemical Gas Specific (CO)5. Detection Gas: Carbon Monoxide (CO)6. Temperature Measurement: Ambient Temperature 7. Display Unit: CO: ppm, Temperature: Degree C / degree F 8. Measurement Range: CO: 0~1000PPM, Temperature: 0~50 degree C / 32~122 degree F 9. Resolution: CO: 1PPM, Temperature: 0.1 degree C / 0.1 degree F 10. Accuracy: CO: +/-5% or +/-10PPM, Temperature: +/-1.5 degree C11. Response Time: <60s 12. Alarm: Sound Alarm 13. Alarm Point: 24PPM Preset (Adjustable) 14. Battery Type: 3 * AAA 1.5V Alkaline Batteries (NOT Included)15. Operating Temperature: 0~50 degree C, Relative Humidity 1%~99%16. Storage Temperature: -30~60 degree C, Relative Humidity: 1%~99%Specification: Package Weight One Package Weight 0.25kgs / 0.56lb One Package Size 25cm * 15cm * 5cm / 9.84inch * 5.91inch * 1.97inch Qty per Carton 60 Carton Weight 16.00kgs / 35.27lb Carton Size 50cm * 50cm * 37cm / 19.69inch * 19.69inch * 14.57inch Loading Container 20GP: 288 cartons * 60 pcs = 17280 pcs 40HQ: 669 cartons * 60 pcs = 40140 pcs

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DIY Supplies:Plumbing Model Number:Gas Analyzers Install, and it could detect gas, liquefied petroleum gas, coal gas, methane, other combustible gases etc. It also has a clear LCD display for showing the numerical number of gas concentration, and it will give a loud sound when it detects a gas leakage, practical to use.Features:1. The shell of our gas detector is made of high-quality plastic material, which makes it eco-friendly, sturdy and durable to use.2. When the gas leakage occurs, the gas concentration reaches the alarm concentration will sound and light alarm, play a timely reminder, to ensure personal safety.3. With a clear LCD display, the numerical number of gas concentration will show on it clearly. When the detector detects a gas leakage, it will give an alarm in a loud sound.4. Our gas detector is highly sensitive, it could detect many kinds of gas, such as liquefied petroleum gas, coal gas, methane, other combustible gases etc.5. Easy to install with included screws and installed panel, it is also very easy to use with the power button, plug and play.6. A great household necessity to protect your families safety. Perfect for using in home kitchen, bathroom, bus carriage, grill house and so on.Specifications:1. Plug Standard: EU Plug2. Shell Material: Plastic3. Color: White4. Operating Voltage: AC 90V-240V 50/60Hz5. Working Current: 200mA6. Battery: 9V Ni-Mh Battery (Not included)7. Alarm Concentration: 2500PPM (+/-1500PPPM)8. Alarm Output: Sound & Flash alarm9. Alarm Language: English10. Operating Temperature: -10 degree C ~ +50 degree C11. Relative Humidity: 10%-95%12. Installation Mode: Wall mounted13. Alarm Sound: >=85db14. Size: Approx. 112*73*43mmSpecification: Package Weight One Package Weight 0.24kgs / 0.54lb One Package Size 11cm * 7.3cm * 3cm / 4.33inch * 2.87inch * 1.18inch Qty per Carton 61 Carton Weight 15.00kgs / 33.07lb Carton Size 43cm * 28cm * 11cm / 16.93inch * 11.02inch * 4.33inch Loading Container 20GP: 2013 cartons * 61 pcs = 122793 pcs 40HQ: 4674 cartons * 61 pcs = 285114 pcs

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DIY Supplies:Paint & Decorating Model Number:SMART SENSOR 4 in 1 Gas Detector This professional 4 in 1 gas detector is designed for detecting CO, H2S, O2 and LEL gas. It can continuously monitor the CO, H2S, O2 and LEL gas concentration in the surrounding environment, once the gas concentration reaches the level of the alarm, the alarm will sound, light and vibrate. High precision portable CO, H2S, O2 and LEL gas tester with compact size and light weight, very easy to carry and operate. Features:1. Detect 4 kinds of gas: carbon monoxide(CO), hydrogen sulfide(H2S), oxygen(O2) and combustible gas(LEL).2. Continuously monitor the CO, H2S, O2 and LEL gas concentration in the surrounding environment with professional and accurate measurement.3. Sound & light vibration alarm works when one of the CO, H2S, O2 & LEL gas concentration reaches the level of the alarm.4. Can set automatic shutdown time and concentration of alarm value.5. Large color LCD display with back-light for easy reading.6. Can connect to a sampling pump to operate in closed place.7. Can be widely used in shipping, mining, oil exploitation, chemical, gas pipeline, tunnel construction, coal, metallurgy, paper, fire, municipal, textile and other industries.8. Size: 138*70*43mm, weight: 360gSpecification: Package Weight One Package Weight 1.50kgs / 3.31lb One Package Size 25cm * 28cm * 9cm / 9.84inch * 11.02inch * 3.54inch Qty per Carton 10 Carton Weight 13.60kgs / 29.98lb Carton Size 45cm * 50cm * 30cm / 17.72inch * 19.69inch * 11.81inch Loading Container 20GP: 395 cartons * 10 pcs = 3950 pcs 40HQ: 917 cartons * 10 pcs = 9170 pcs

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1. The body adopts streamlined design, comfortable grip2. The interior is equipped with an optical glass lens3. The body adopts copper plating process, made of metal, the shell is silicone4. Lens upgrade, clearer vision, clear scale5. Internal with temperature compensation device, automatic temperature compensation range of 10-30 degrees Celsius, eliminating the need to check the temperature compensation table to correct the trouble6. Measurement range: 0-34%7. Grid value: 1%8. Weight: about 130g9. Size: about 17.3 x 4.1cmUsage:1. Open the cover and wipe the test prism carefully with a soft cloth2. Take several drops of the solution to be measured, place it on the detection prism, gently close the cover to avoid air bubbles, so that the solution spreads over the prism surface3. align the instrument into the light plate to the light source or bright, eye through the eyepiece to observe the field of view, turn the eyepiece adjustment handwheel, so that the field of view of the blue-white demarcation line is clear4. The scale value of the demarcation line is the concentration of the solutionCaution:1. In use must be careful and cautious, strictly in accordance with the instructions, not arbitrarily loose the connection parts of the instrument, no collision, violent vibration is strictly prohibited2. After use, it is strictly forbidden to put it directly into water for cleaning, and it should be wiped with a clean soft cloth, and the optical surface should not be touched or scratched.3. The instrument should be put in a dry, non-corrosive gas place for storage4. Avoid losing spare parts5. The instrument has been calibrated before leaving the factory, just use it directly, do not screw the eyepiece, adjust it back and forth, please adjust it in the opposite direction when it is not adjustableSpecification: Package Weight One Package Weight 0.20kgs / 0.45lb One Package Size 20cm * 15cm * 7cm / 7.87inch * 5.91inch * 2.76inch Qty per Carton 146 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 146 pcs = 25842 pcs 40HQ: 412 cartons * 146 pcs = 60152 pcs

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This refractometer is designed to measure the following items:A. The freezing point of Antifreeze based on Propylene Glycol and Ethylene Glycol. It can not measure the antifreeze based on methanol.B. The freezing point of Automotive glass water. It can not measure the glass water based on methanol.C. The concentration of Automotive Adblue (Urea)D. The Specific Gravity (sg) of the rechargeable battery fluid.It is equipped with Automatic Temperature Compensation (ATC), so that the fractometer is automatically adjusted to correct temperature discrepancies of environment temperature.Specification: Package Weight One Package Weight 0.27kgs / 0.60lb One Package Size 20cm * 15cm * 7cm / 7.87inch * 5.91inch * 2.76inch Qty per Carton 61 Carton Weight 15.00kgs / 33.07lb Carton Size 78cm * 59cm * 27cm / 30.71inch * 23.23inch * 10.63inch Loading Container 20GP: 214 cartons * 61 pcs = 13054 pcs 40HQ: 498 cartons * 61 pcs = 30378 pcs

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This Alcohol refractometer is designed for the measurement of distilled beverages (ethanol with water) like whiskey, brandy, fruit brandy, slivovitz, vodka, gin, tequila, Chinese alcohol, etc. It has a scale in the range of 0 - 80 % (VOL - alcohol volume percent).Specification: Package Weight One Package Weight 0.29kgs / 0.64lb One Package Size 20cm * 15cm * 7cm / 7.87inch * 5.91inch * 2.76inch Qty per Carton 57 Carton Weight 15.00kgs / 33.07lb Carton Size 76cm * 57cm * 26cm / 29.92inch * 22.44inch * 10.24inch Loading Container 20GP: 236 cartons * 57 pcs = 13452 pcs 40HQ: 549 cartons * 57 pcs = 31293 pcs

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This High concentration Brix Refactometer is a Versatile refractometer, with a brix scale of 0~90%, perfect for sugar measurement, contribute much for the management of product quality, delivery inspection, sweetness classification and so on. It is widely used in the manufacture or production of sugar, food, fruit, beverages etc. With a higher measuring range (Brix 0~90%), this refractometer can be used to measure from low to high sugar objects, such as honey, strong sugar water etc. Easy to use, sturdy design, compact in size and light in weight, convenient to keep up and carry arround. We provide Manual in English, French, German, Spanish, Italian, Japanese, Russian. One Cloth bag for the convenient of customer is provided. With Built-in ATC (Automatic Temperature Compensation) from 10~30 degree Celsius. Cushioned with soft & comfortable non-slip rubber Soft Rubber eyepiece for comfortable viewing Equipped with scale measurement which provides direct reading Accurate testing results guaranteed Durable and bulit to last long Adjustable manual focusing Use ambient light only which means battery or power source is not requiredSpecification: Package Weight One Package Weight 0.28kgs / 0.61lb One Package Size 20cm * 15cm * 7cm / 7.87inch * 5.91inch * 2.76inch Qty per Carton 57 Carton Weight 15.00kgs / 33.07lb Carton Size 76cm * 57cm * 26cm / 29.92inch * 22.44inch * 10.24inch Loading Container 20GP: 236 cartons * 57 pcs = 13452 pcs 40HQ: 549 cartons * 57 pcs = 31293 pcs

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This refractometer is used in salt solution testing, seawater control industry and aquariums, oceans, fisheries, farms in the salt content of seawater, and low concentrations of salt in processed foods, or used to detect the specific gravity of the salt solution. Can also be used for medical institutions, university research and so on.If you grow your own fruit and vegetables to produce homemade pickles or to freeze, this refractometer will give you the information that you need to ensure your end products quality.Vital if you need to check salt levels when preparing sea food and other ocean by-products.Healthy fish are happy fish! Ensure the percentage of salinity in your aquarium or pond is just how your fish like it.Essential piece of equipment used in research and clinical laboratories for checking and maintaining stock solutions and dilutionsVital for students of Oceanography for determining the soil quality, research and clinical laboratories and marine industry It is equipped with Automatic Temperature Compensation (ATC), so that the fractometer is automatically adjusted to correct temperature discrepancies of environment temperature. 2 in 1 design to measure the Specific gravity (sg) of the salt solution and concentration of Nacl Easy to use, sturdy design, compact in size and light in weight, convenient to keep up and carry arround. With Built-in ATC (Automatic Temperature Compensation) from 10~30 degree Celsius. Soft Rubber eyepiece for comfortable viewing Equipped with scale measurement which provides direct reading Accurate testing results guaranteed Durable and bulit to last long Adjustable manual focusing Use ambient light only which means battery or power source is not required We provide Manual in English, French, German, Spanish, Italian, Japanese, Russian .Specification: Package Weight One Package Weight 0.29kgs / 0.63lb One Package Size 20cm * 15cm * 7cm / 7.87inch * 5.91inch * 2.76inch Qty per Carton 59 Carton Weight 15.00kgs / 33.07lb Carton Size 77cm * 58cm * 27cm / 30.31inch * 22.83inch * 10.63inch Loading Container 20GP: 221 cartons * 59 pcs = 13039 pcs 40HQ: 513 cartons * 59 pcs = 30267 pcs

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This refractometer is for measuring the Sugar Content and Special Gravity of wort. It includes an automatic temperature compensation of 10~30 degree Celsius. This refractometer can replace your hydrometer for easier and more accurate measurements. Simply use the dropper to take a sample of wort and put it on the prism. Then hold the refractometer up to the light and look through the eyepiece. Due to the dual scale there is no need convert to specific gravity as the scale measures both Brix and SG. Easy to use, sturdy design, compact in size and light in weight, convenient to keep up and carry arround. We provide Manual in English, French, German, Spanish, Italian, Japanese, Russian. One Cloth bag for the convenient of customer is provided. With Built-in ATC (Automatic Temperature Compensation) from 10~30 degree Celsius. Soft Rubber eyepiece for comfortable viewing Equipped with scale measurement which provides direct reading Accurate testing results guaranteed Durable and bulit to last long Adjustable manual focusing Use ambient light only which means battery or power source is not requiredSpecification: Package Weight One Package Weight 0.25kgs / 0.54lb One Package Size 20.5cm * 8.5cm * 5.5cm / 8.07inch * 3.35inch * 2.17inch Qty per Carton 61 Carton Weight 15.00kgs / 33.07lb Carton Size 78cm * 59cm * 27cm / 30.71inch * 23.23inch * 10.63inch Loading Container 20GP: 214 cartons * 61 pcs = 13054 pcs 40HQ: 498 cartons * 61 pcs = 30378 pcs

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This Specific Grape wine refractometer is used to measure the sugar content of the grape juice (see the Brix scale on the left) in the brewing process. Then, according to the sugar content of the grape juice, we can understand the alcohol concentration of the grape wine after brewing. It can measure both the sugar content of the grape juice and the alcohol concentration of the grape wine. It can not be used to test the alcohol concentration of the finished grape wine. It is equipped with Automatic Temperature Compensation (ATC), so that the fractometer is automatically adjusted to correct temperature discrepancies of environment temperature. Dual-scale design to measure the sugar content of the grape juice (0~40%) and the alcohol concentration of grape wine (0~25%). Easy to use, sturdy design, compact in size and light in weight, convenient to keep up and carry arround. We provide Manual in English, Russian. With Built-in ATC (Automatic Temperature Compensation) from 10~30 degree Celsius. Soft Rubber eyepiece for comfortable viewing Equipped with scale measurement which provides direct reading Accurate testing results guaranteed Durable and bulit to last long Adjustable manual focusing Use ambient light only which means battery or power source is not requiredSpecification: Package Weight One Package Weight 0.24kgs / 0.53lb One Package Size 20cm * 15cm * 7cm / 7.87inch * 5.91inch * 2.76inch Qty per Carton 63 Carton Weight 15.00kgs / 33.07lb Carton Size 79cm * 59cm * 27cm / 31.1inch * 23.23inch * 10.63inch Loading Container 20GP: 211 cartons * 63 pcs = 13293 pcs 40HQ: 491 cartons * 63 pcs = 30933 pcs

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The brix and water content, and the baume are always importance to prove the honeys quality. Our honey refractometers are best tool to the farmer to test their honey. This optical refractometer (honey meter) has scales in the range of 12 - 27 % for measurement of honey moisture. The reading resolution is 1 %. It is suitable not only to beekeepers but also for all who needs check bee honey quality (e.g. in food industry).The other two scales offer possibility of reading the sugar content. It is widely used in the manufacture or production of sugar, food, fruit, beverages etc Easy to use, sturdy design, compact in size and light in weight, convenient to keep up and carry arround. We provide Manual in English, French, German, Spanish, Italian, Japanese, Russian. One Cloth bag for the convenient of customer is provided. With Built-in ATC (Automatic Temperature Compensation) from 10~30 degree Celsius. Cushioned with soft & comfortable non-slip rubber Soft Rubber eyepiece for comfortable viewing Equipped with scale measurement which provides direct reading Accurate testing results guaranteed Durable and bulit to last long Adjustable manual focusing Use ambient light only which means battery or power source is not requiredSpecification: Package Weight One Package Weight 0.26kgs / 0.58lb One Package Size 20cm * 15cm * 7cm / 7.87inch * 5.91inch * 2.76inch Qty per Carton 63 Carton Weight 15.00kgs / 33.07lb Carton Size 79cm * 59cm * 27cm / 31.1inch * 23.23inch * 10.63inch Loading Container 20GP: 211 cartons * 63 pcs = 13293 pcs 40HQ: 491 cartons * 63 pcs = 30933 pcs

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This Pet Medical Clinical Refractometer is used to measure the following items: 1. The Specific Gravity of Large Animals Urine, especially dog 2. The Specific Gravity of Cats Urine 3. The Concentration of Serum Protein or Plasma Protein It is equipped with Automatic Temperature Compensation (ATC), so that the fractometer is automatically adjusted to correct temperature discrepancies of environment temperature.Specification: Package Weight One Package Weight 0.26kgs / 0.57lb One Package Size 20cm * 15cm * 7cm / 7.87inch * 5.91inch * 2.76inch Qty per Carton 58 Carton Weight 15.00kgs / 33.07lb Carton Size 77cm * 58cm * 27cm / 30.31inch * 22.83inch * 10.63inch Loading Container 20GP: 221 cartons * 58 pcs = 12818 pcs 40HQ: 513 cartons * 58 pcs = 29754 pcs

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Measuring Range:Salinity: 0-28%Minimum Division: Salinity: 0.2%Reference Temperature: 20 CATC range: -10~30 C (50~86 F)Specification: Package Weight One Package Weight 0.25kgs / 0.55lb One Package Size 20cm * 15cm * 7cm / 7.87inch * 5.91inch * 2.76inch Qty per Carton 60 Carton Weight 15.00kgs / 33.07lb Carton Size 78cm * 58cm * 27cm / 30.71inch * 22.83inch * 10.63inch Loading Container 20GP: 218 cartons * 60 pcs = 13080 pcs 40HQ: 506 cartons * 60 pcs = 30360 pcs

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