Test Equipment

Features1. 100% high quality and brand new 2. Mini and light weight design 3. Large and clear LCD display 4. Heating and cooling function 5. Temperature Measuring Range: 40 to 110 Degrees Celsius 6. Temperature calibration; Refrigerating control output delay protection 7. Setting the temperature setting value and the difference value 8. All parameters can be set to default setting after short circuit. 9. Can be used for domestic freezer, water tanks, refrigerator, industrial chiller, boiler, steamer, industrial equipments and other temperature-controlled systems.

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About the productOn appearance: 1. 86mm hidden box and european 60mm round box is suitable. 2. White, black housing creates your colorful life. 3. White backlight protect your eyes. 4. Touch buttons to make simple operation. 5. Amazing silver frame opens your modern life. On functionality: 1. Powerful functions are available such as Modbus/WiFi etc. 2. 0.5 Degrees Celsius accuracy keeps temperature within the level you set. 3. Data memory when power is off. 4. 5+2 periods programmable maximize comfort and economy. 5. Create thermostat group to centrally control. 6. Integrated with Amazon Echo, Google Home, Tmall Genie, IFTTT. 7. Support device sharing. 8. All setting languages synchronize your time zone, address and language. 9. No limit to add room. 10. Support smart scene.

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Display Type:Digital Usage:Household Theory:Temperature Controller Max Measuring Temperature:100°C - 119°C Brand Name:HESAI Power Type:Charger Display Size:1.9 Inches & Under Style:Handheld Model Number:W1209 Specifications Model: W1209Dimensions: 48 * 40mmTemperature control mode: ON / OFFTemperature range :-50-110ResolutionWhen temperature is 0.1 the resolution is -9.9~99.9, other temperature segment is 1Control accuracy: 0.1Hysteresis accuracy: 0.1Refresh rate: 0.5SHigh temperature protection 0-110Supply voltage: for DC 12VStatic current: ≤ 35MA, attract current ≤ 65MAOutput voltage: for DC 12VOutput power: 10A relayMeasurement input: NTC (10K 0.5%) Waterproof SensorEnvironmental requirements: -10 ~ 60 Humidity 20% -85%

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About the productOn appearance: 1. 86mm hidden box and european 60mm round box is suitable. 2. White, black housing creates your colorful life. 3. White backlight protect your eyes. 4. Touch buttons to make simple operation. 5. Amazing silver frame opens your modern life. On functionality: 1. Powerful functions are available such as Modbus/WiFi etc. 2. 0.5 Degrees Celsius accuracy keeps temperature within the level you set. 3. Data memory when power is off. 4. 5+2 periods programmable maximize comfort and economy. 5. Create thermostat group to centrally control. 6. Integrated with Amazon Echo, Google Home, Tmall Genie, IFTTT. 7. Support device sharing. 8. All setting languages synchronize your time zone, address and language. 9. No limit to add room. 10. Support smart scene.

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On appearance: 1. 86mm hidden box and european 60mm round box is suitable. 2. White, black housing creates your colorful life. 3. White backlight protect your eyes. 4. Touch buttons to make simple operation. 5. Amazing silver frame opens your modern life. On functionality: 1. Powerful functions are available such as Modbus/WiFi etc. 2. 0.5 Degrees Celsius accuracy keeps temperature within the level you set. 3. Data memory when power is off. 4. 5+2 periods programmable maximize comfort and economy. 5. Create thermostat group to centrally control. 6. Integrated with Amazon Echo, Google Home, Tmall Genie, IFTTT. 7. Support device sharing. 8. All setting languages synchronize your time zone, address and language. 9. No limit to add room. 10. Support smart scene.

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Specification1.Temperature measuring range: -50 ° C ~ 99 ° C2.Resolution: 0.1 ° C;3.Accuracy:+- 1° C (-50 ° C ~ 70 ° C);4.Sensor error delay: 1 minute5.Power supply: 24Vdc 6.Power consumption: <3W;7.Sensor: NTC sensor (1PC);8.Relay contact capacity: Two Relay Cool 10A/220VAC; Heat 10A/220VAC;9.Ambient temperature: 0 ° C ~ 60 ° C;10.Storage temperature: -30 ° C ~ 75 ° C;11.Relative humidity: 20% ~ 85% (No condensate)12.Sensor length: 1.0m13. Front Panel Size: 75x34.5mm ; Product Size: 75x34.5x85 mm ; Mounting Size: 71x29mmFeatureSwitch the modes between cool and heat;Control temperature by setting the temperature setting value and the difference value;Temperature calibration;Refrigerating control output delay protection;Alarm when temperature exceeds temperature limit or when sensor error.All parameters setting can be saved when power off.Can be used for domestic freezer, water tanks, refrigerator,industrial chiller, steamer, industrial equipment and other temperature control applications.Package including1xTemperature Controller1xInstruction manual

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1. Measurement range: minus 50-530 degrees Celsius (negative 58-986 degrees Fahrenheit), 2. Measurement accuracy: +/-1.5 or 1 degrees Celsius take the big one 3. Celsius/Fahrenheit temperature unit conversion, data retention, 4. Laser positioning switch, LCD backlight switch 5. Automatic shutdown function

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1. Control type: Temperature2. Control mode: Intelligent temperature control regulator3. Measurement object: Air water4. Temperature range: -19-99 (degree C)5. Opening size: 70 * 50 (mm)6. Installation Type: Screw7. Working voltage: 220V (V)8. Dimensions: 90 * 60 (mm)9. Weight: 0.05 (Kg)

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1. Material: Brass2. Connection form: Thread3. Applicable medium: Water4. Working environment: Normal temperature, low pressure5. Flow direction: One way6. Nominal diameter: 15-25 (mm)

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1. Temperature range: -55-120 degrees Celsius2. Control temperature accuracy: 0.1 degrees Celsius3. Display colors: red and blue4. Power supply voltage: DC 12V / AC110-220V5. Relay: 20A6. Dimensions: 79 x 43 x 26 mm7. Cutout size: 74 x 39 mm8. Can be saved digitally9. Packing list:1 digital temperature controller1 x manual

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1. Temperature range: -55-120 degrees Celsius2. Control temperature accuracy: 0.1 degrees Celsius3. Display colors: red and blue4. Power supply voltage: DC 12V / AC110-220V5. Relay: 20A6. Dimensions: 79 x 43 x 26 mm7. Cutout size: 74 x 39 mm8. Can be saved digitally9. Packing list:1 digital temperature controller1 x manual

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1. Temperature range: -55-120 degrees Celsius2. Control temperature accuracy: 0.1 degrees Celsius3. Display colors: red and blue4. Power supply voltage: DC 12V / AC110-220V5. Relay: 20A6. Dimensions: 79 x 43 x 26 mm7. Cutout size: 74 x 39 mm8. Can be saved digitally9. Packing list:1 digital temperature controller1 x manual

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1. 4.8 inch screen display 2. 6 touch design buttons, stylish 3. The color-changing circular design in the middle brings more dynamic effect 4. Wall-mounted and embedded installation compatible design, flexible and flexible 5. The 3H2C heat pump system is compatible with 12 interfaces and reserves space 6. Fahrenheit and Celsius can be switched 7. 7 days four time programming / temporary manual programming / manual mode / holiday mode free scheduling 8. Local humidity, weather, wind index, and ultraviolet intensity display provide a powerful reminder for your life 9. Frame material: aviation aluminum silver 10. Body material: PC+ABS 11. Dustproof level: IP20 12. Voltage: 24V AC/DC

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1. 4.8 inch screen display 2. 6 touch design buttons, stylish 3. The color-changing circular design in the middle brings more dynamic effect 4. Wall-mounted and embedded installation compatible design, flexible and flexible 5. The 3H2C heat pump system is compatible with 12 interfaces and reserves space 6. Fahrenheit and Celsius can be switched 7. 7 days four time programming / temporary manual programming / manual mode / holiday mode free scheduling 8. Local humidity, weather, wind index, and ultraviolet intensity display provide a powerful reminder for your life 9. Frame material: aviation aluminum silver 10. Body material: PC+ABS 11. Dustproof level: IP20 12. Voltage: 24V AC/DC

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1. 4.8 inch screen display 2. 6 touch design buttons, stylish 3. The color-changing circular design in the middle brings more dynamic effect 4. Wall-mounted and embedded installation compatible design, flexible and flexible 5. The 3H2C heat pump system is compatible with 12 interfaces and reserves space 6. Fahrenheit and Celsius can be switched 7. 7 days four time programming / temporary manual programming / manual mode / holiday mode free scheduling 8. Local humidity, weather, wind index, and ultraviolet intensity display provide a powerful reminder for your life 9. Frame material: aviation aluminum silver 10. Body material: PC+ABS 11. Dustproof level: IP20 12. Voltage: 24V AC/DC

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1. 4.8 inch screen display 2. 6 touch design buttons, stylish 3. The color-changing circular design in the middle brings more dynamic effect 4. Wall-mounted and embedded installation compatible design, flexible and flexible 5. The 3H2C heat pump system is compatible with 12 interfaces and reserves space 6. Fahrenheit and Celsius can be switched 7. 7 days four time programming / temporary manual programming / manual mode / holiday mode free scheduling 8. Local humidity, weather, wind index, and ultraviolet intensity display provide a powerful reminder for your life 9. Frame material: aviation aluminum silver 10. Body material: PC+ABS 11. Dustproof level: IP20 12. Voltage: 24V AC/DC

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1. 4.8 inch screen display 2. 6 touch design buttons, stylish 3. The color-changing circular design in the middle brings more dynamic effect 4. Wall-mounted and embedded installation compatible design, flexible and flexible 5. The 3H2C heat pump system is compatible with 12 interfaces and reserves space 6. Fahrenheit and Celsius can be switched 7. 7 days four time programming / temporary manual programming / manual mode / holiday mode free scheduling 8. Local humidity, weather, wind index, and ultraviolet intensity display provide a powerful reminder for your life 9. Frame material: aviation aluminum silver 10. Body material: PC+ABS 11. Dustproof level: IP20 12. Voltage: 24V AC/DC

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1. 4.8 inch screen display 2. 6 touch design buttons, stylish 3. The color-changing circular design in the middle brings more dynamic effect 4. Wall-mounted and embedded installation compatible design, flexible and flexible 5. The 3H2C heat pump system is compatible with 12 interfaces and reserves space 6. Fahrenheit and Celsius can be switched 7. 7 days four time programming / temporary manual programming / manual mode / holiday mode free scheduling 8. Local humidity, weather, wind index, and ultraviolet intensity display provide a powerful reminder for your life 9. Frame material: aviation aluminum silver 10. Body material: PC+ABS 11. Dustproof level: IP20 12. Voltage: 24V AC/DC

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1. 95-240V AC, 50/60HZ 2. Control water heating, 5A 3. Built-in sensor 4. Negative display backlight 5. Installation method: cassette

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1. 95-240V AC, 50/60HZ 2. Control water heating, 5A 3. Built-in sensor 4. Negative display backlight 5. Installation method: cassette

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1. 95-240VAC, 50/60HZ 2. Controlling water/gas boiler Heating, 5A 3. Built-in internal sensor 4. With WiFi 5. Brushed stainless steel mirror 6. Negative display backlight 7. Installation method: cassette

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1. 95-240VAC, 50/60HZ 2. Control water heating, 5A 3. Built-in internal sensor 4. Brushed stainless steel mirror 5. Negative display backlight 6. Installation method: cassette

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1. 95-240VAC, 50/60HZ 2. Control water heating, 5A 3. Built-in internal sensor 4. With WiFi 5. Brushed stainless steel mirror 6. Installation method: cassette

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1. 95-240VAC, 50/60HZ 2. Controlling water/gas boiler Heating, 5A 3. Built-in nternal sensor 4. Brushed stainless steel mirror 5. Negative display backlight 6. Installation method: cassette

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1. 95-240VAC, 50/60HZ 2. Control water heating, 5A 3. Built-in sensor 4. With WiFi 5. Negative display backlight 6. Installation method: cassette

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1. 95-240VAC, 50/60HZ 2. Control water heating, 5A 3. Built-in sensor 4. With WiFi 5. Negative display backlight 6. Installation method: cassette

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1. 95-240VAC, 50/60HZ 2. Controlling water/gas boiler Heating, 5A 3. Built-in internal sensor 4. Negative display backlight 5. Installation method: cassette

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1. 95-240VAC, 50/60HZ 2. Controlling water/gas boiler Heating, 5A 3. Built-in internal sensor 4. Negative display backlight 5. Installation method: cassette

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1. 95-240VAC, 50/60HZ 2. Controlling water/gas boiler Heating, 5A 3. Built-in internal sensor 4. With WiFi 5. Negative display backlight 6. Installation method: cassette

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1. 95-240VAC, 50/60HZ 2. Controlling water/gas boiler Heating, 5A 3. Built-in internal sensor 4. With WiFi 5. Negative display backlight 6. Installation method: cassette

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1. Size: 86 x86mm2. Backlight color: White/blue3. The visible thickness on the wall is only 15mm4. 86mm cassette and 60mm European box5. Flat surface is easy to install6. Display size: 64 x 64mm7. Child lock to prevent misuse by children8. Data can be automatically stored when the power is off9. Power supply: 2 AA alkaline batteries (not included)10. Display accuracy: 0.5 degrees Celsius11. Probe sensor: NTC (10k) 1%12. Contact capacity: 3 A boiler heating13. Working environment temperature: 0 -90 degrees Celsius14. Temperature adjustment range: 5~35 degrees Celsius15. Temperature display range: 0~40 degrees Celsius16. Installation method: wall-mounted or on the battery holder

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Specifications: 1. Humidity resolution: 0.1%RH 2. Sampling rate: 2.5 times/sec 3. MAX/ MIN function 4. Large LCD temperature & humidity dual display Features: 1. Accuracy of temperature: +/-1 degree C or +/-11.8 degree F 2. Temperature range: -10 degree C~50 degree C 3. Humidity range: 5%RH ~ 98%RH 4. Accuracy of humidity: +/- 3%(30-95%); +/- 5%(10-30%); degree C/ degree F selection 5. Auto /Manual power shut off 6. Low battery indication 7. Data hold 8. Temperature resolution: 0.1 degree C 9. Humidity resolution: 0.1%RH 10. Sampling rate: 2.5 times/sec 11. Power: 9V battery (Included)

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Features:1. High precision, can withstand 3000 times of high and low temperature2. Long service life and stable performance3. Adjustable temperature, convenient and practicalProduct specifications:1. Material: ABS2. Temperature control range: Minus 50-110 degrees Celsius3. Temperature measurement error: Up and down 0.5 degrees Celsius4. Sensor model: NTC (10K/3435)5. Accuracy: 0.1 degrees Celsius6. Working voltage: AC90V-AC250V7. Working current: (MAX)200mA8. Relay contact current: AC 10A/220V (can withstand a load of 2200W)9. Data storage: Yes10. Working temperature: 0-60 degrees Celsius11. Storage temperature: minus 10-60 degrees Celsius12. Meter size: 7.5 x 3.45 x 8.5 cm13. Opening size: 7.1 x 2.8 cm14. Weight: 135 grams

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The main function:1. Refrigeration control, heating control2. Dehumidification control, humidification control3. Condensation alarm, alarm output4. Timing load output, load delay outputProduct specifications:1. Material: PC + ABS flame retardant2. Power supply voltage: AC100-240V 50/60HZ3. Input signal: one integrated temperature and humidity sensor (line length 2 meters)4. Output load: R1 load 5A/250Vac, R2, R3 load 16A/250Vac, R4, R5 load 3A/250Vac (loads are all resistive)5. Setting range: humidity 5%-95%, RH division value: 0.1%, temperature: minus 20-60 degrees Celsius, division value: 0.1 degrees Celsius6. Measurement accuracy: temperature ±1%; humidity ±5%7. Working environment: minus 20-45 degrees Celsius; 10-90RH without condensation8. Protection level: IP65 (front panel)9. Overall size: 7.8 x 3.45 x 7.1 cm10. Opening size: 7.1 x 2.9 cm

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1)Measuring range: 30~130 dBA；35~130 dBC 2)Accuracy: ±1.5 dB 3)Digit & Resolution: 5digits & 0.1 dB 4)Frequency response: 31.5Hz ~8.5KHz 5)Measuring level: 30~130, 40~90, 50~100, 60~110, 80~130 6)Frequency weighting: A / C 7)Time weight: FAST/SLOW 8)Sampling rate: 2times/second 9)Microphone: 1/2 inch polarization capacitance microphone 10)AC/DC output 11)Max reading 12)Barcode indicate the value 13)Overload indication: OVER / UNDER 14)Low battery indication 15)Power: 1.5V AA* 4pcs (not included) or DC 6V 100mA adapter

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1)Measuring range: 30~130 dBA；35~130 dBC 2)Accuracy: ±1.5 dB 3)Digit & Resolution: 5digits & 0.1 dB 4)Frequency response: 31.5Hz ~8.5KHz 5)Measuring level: 30~130, 40~90, 50~100, 60~110, 80~130 6)Frequency weighting: A / C 7)Time weight: FAST/SLOW 8)Sampling rate: 2times/second 9)Microphone: 1/2 inch polarization capacitance microphone 10)AC/DC output 11)Max reading 12)Barcode indicate the value 13)Overload indication: OVER / UNDER 14)Low battery indication 15)Power: 9V battery x 1pcs(not included) or DC 6V 100mA adapter

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1. It is designed according to the IEC651 TYPE2 & ANSI S1.4 TYPE2 2. Modern,compact,portable design 3. Accuracy up to +-1.5dB 4. Measurement range: 30dBA-130dBA 5. Max hold 6. Auto backlight display 7. Auto power off 8. This equipment has been designed to meet the measurement requirement of safety engineers, health, industrial safety offices and sound quality control in various environments, which included factory, office, traffic, family and audio system 9. Accuracy: 1.5 dB 10. Digit & Resolution: 4 & 0.1 dB 11. Frequency response: 31.5Hz ~8.5KHz 12. Sampling rate: 2times/second 13. Digital display: 4 digits

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1. This unit was designed according to following standards: -International electrician committee standard: IEC PUB 651 TYPE2 -US national standard: ANSI S1.4 TYPE2 2. Accuracy up to +/-1.5dB 3. Measurement range is 30 to 130dB 4. Fast/slow time weighting selection 5. Automatic backlight 6. The maximum value holding function 7. Auto power off 10 minutes 8. A/C Frequency weighting selection 9. Both AC and PWM signal output are available 10. Calendar function 11. 4700 data record function 12. Connect with PC through USB,provides data record downloading,real-time data sampling analysis,and printing graph & data functions. 13. Power: 4xAA batteries(not included)

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1) Display: 3 1/2 digits LCD display, maximum reading value display 1999 2) Accuracy:≤10,000Lux:±4%rdg±0.5f.s / ≥10,000Lux:±5%rdg±10digits(Calibrated to standard incandescent lamp at color temperature 2856K) 3) Ranges: 1~100,000Lux.(3 Ranges) / 20,000Lux range: reading×10 / 100,000Lux range: reading×100 4) Resolution: 1Lux 5) Repeatability: ±2% 6) Temperature Characteristic: ±0.1%℃ 7) Sampling time: 0.5 second 8) Reading locked function 9) Photo detector: one silicon photo diode with filter 10) Size: 12.5cm x 7cm x 2.5cm

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1. Display: 3 3 / 4 digitals LCD display, maximum reading value display 2. Ranges: 1-4000 Lux. (3 ranges) - 400 Lux range: reading - 4000 Lux range: reading - 40000 Lux range: reading x 10 3. Resolution: 0.1 Lux 4. Accuracy: - >/= 4000 Lux +/- (5% rdg + 10 digits) 5. Repeatability: +/- 2% 6. Test rate: 2 times / sec 7. Photo detector: one silicon photo diode with filter 8. Power supply: 7V 6F22 battery (include) 9. Size: 13cm x 7.5cm x 2.5cm

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1. Accuracy: 5.0% 2. Auto zero function 3. Data hold function 4. Low battery indication 5. Sampling Rate: 2.0 Times/Second 6. Resolution: 1 Lux 7. Photodetector: one silicon photodiode with filter 8. Battery: one 9V battery, Consumption current approx. 2mA (9V Battery Included!) 9. Operating Temperature and Humidity: 0C~40C (32F~104F), 0~70%Rh 10. Storage Temperature and Humidity: -10C~50C (14F~122F), 0~80%Rh 11. Measurement Range: Lx1010BS~2000 / 20000 / 100000 lux (??± 5%+2D) 12. Size: 13cm x 7cm x 2.5cm

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1. Ultrasonic distance measurer 2. Backlit LCD display: 28mm x 16mm 3. Unit of measurement: Feet / Meter 4. Beeps for finish measurement 5. Distance measurement from 0.5m to 18m (2ft to 60ft) 6. With laser pointer function 7. Automatic power off 8. Accurate: +/-0.5% +/- 1cm 9. Resolution: 1cm or 1/2 inch 10. Power supply: 1x 12V 23A Battery (Not included) 11. Laser beam: 1mW 12. Wavelength: 650nm 13. Ultrasonic frequency: 40 kHz 14. Dimensions: 78mm x 70mm x 36mm 15. Weight: 68g

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1. Measurement range: 0Lux ~200,000Lux/oFc~185,806Fc. 2. Digital update: 2 seconds at a time. 3. Photometric probe: silicon diode. 4. The operating temperature and humidity: 0 Celsius~40 Celsius. 5. Save the temperature and humidity: -20 Celsius~50 Celsius. 6. Power: 9V battery (not included). 7. Size: 52.5mm x 35.5mm x 166mm. 8. Backlight function. 9. Low voltage battery symbol instructions. 10. Application: Factories, schools, office, transportation route, house and so on, used to measure light intensity of various occasions.

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About the productApplication: Widely used in electro-optical sources, research teaching, metallurgy building, industry inspection as well as agriculture researching and illumination control.1. Powerful measurement functions: It can measure not only current values, maximum and minimum of illuminance and temperature, but also illuminance difference, integrating illuminance and average integrating illuminance. 2. Support automatic storage of illuminance data (up to 1900 groups) and manual storage of illuminance data (up to 60 groups) 3. Wide measuring range (0 to 200000 lux) and support automatic range shift 4. Delivered with computer-based analysis software, allowing users to operate the meter with ease 5. Quick response, high portability and operable by a single hand. 6. The sensor can be rotated. 7. BacklightSpecifications1. Photoelectric element: silicone diode 2. Thermal probe: NTC thermistor 3. Illuminance Measuring Range: Total measuring range: 0-200000 Lux - x1: 0-199.9 Lux - x10: 200-199.9 Lux - x100: 2000-1999.9 Lux - x1000: 20000-200000 Lux 4. Temperature measuring range: 0-40 Celsius Degree 5. Illuminance accuracy: +-3%rdg (below 10000 Lux); +-4%rdg (above 10000 Lux) 6. Temperature accuracy: +-1.0Celsius Degree 7. Units of illuminance and temperature: Four combinations of units are available - Lux / Celsius Degree - Lux / Fahrenheit Degree - FC / Celsius Degree - FC / Fahrenheit Degree 8. Illuminance data storage - Automatic: Up to 1900 groups of data can be stored. LuxLAB is used to set the storage cycle and whether to start or stop storage. - Manual: Up to 60 groups of data can be stored. Whether to store is determined manually. 9. LCD display update frequency: Twice per second 10. Operating Temperature / humidity: 0-40 Celsius Degree, 10-90%RH 11. Storage Temperature / humidity: -20-50 Celsius Degree, 10-90%RH 12. Power Supply: two AAA batteries (not included) 13. Battery Life: 10 hours (continuous operation with a USB connection) 14. Auto shutdown: you can set anto shutdown timer through LuxLAB.

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About the product1. Small and portable 2. Can be used for measurement of noise engineering, quality control, health prevention and environmental noise 3. Suitable for factories, offices, families, and etc 4. Powered by 3 x 1.5V AAA batteries(not included)Features1. Measuring range: 30-130 dBA 2. Accuracy: +-1.5dB 3. Frequency response: 31.5Hz-8000Hz 4. Frequency weighting feature: A weighting 5. Resolution: 0.1dB 6. Operating temperature: 0 - 40 celsius degree, 10%-80% relative humidity 7. Storage temperature: -20 - 60 celsius degree, 0-90% relative humidity 8. Min/Max/lock current value 9. LCD backlight 10. Manual/auto power off

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1. Measurement Range: 0.1 to 200,000 lux; 0.01~20,000Fc 2. Resolution: 0.1Lux / 0.01Fc 3. Accuracy:Float up or down 4% 4. Measurement speed: 2 times / second 5. Power: 9V battery (not including)* 1PCS 6. Data Hold function 7. High resolution and response quickly

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This is an easy to use and handy Mini Sound Level Meter. Designed for sound quality control that measures sound level from 30dBA up ~ 130dBA. It has auto range, wide measuring and frequency range (31.5Hz ~ 8KHz), maximum hold, Frequency Weighting A and Auto Backlight. Just press one button readings are instantly displayed. A practical little tool great for noise pollution monitoring, home theater setup, health and safety compliance, vehicle noise testing, etc.Auto backlight has a light sensor on top of LCD that detects environment lighting condition. Lighting display intensifies as the environment lighting condition gets darker. The darker the enronment the brighter the illumination. Also, it it reads in dBA and provides windscreen to filter-out unwanted signals.

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Model: 525A Measuring range: 30-130db Frequency range:31.5hz-8.5khz Response time:fast Microphone:6mm capacitance microphone Power supply;DC5V 1A micro USB outlet Operating condition: 0-40 degree Dimension:210x130x28mm Weight: 453g Features and Functions: 1. Accuracty: + -1.5dB In Standard audio: 94dB 1 khz 2. Measurement Range: 30 - 130dB 3. Frequency Response Range: 31.5 hz - 8.5 khz 4. Frequency weighting: A (Environmental Noise) of Weighting 5. Fast answer

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