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MQ137 MQ-137 Hazardous Gas Sensor Detection Module

MQ137 MQ-137 Hazardous Gas Sensor Detection Module
Product Code: SENS MQ137 MQ-137 Hazardous Gas Sensor Detection Module BIN 13
Availability: 1
Price: R705.13
Ex Vat: R613.16
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MQ137 MQ-137 Gas Sensor

  • Fast Response
  • High Sensitivity
  • Stable
  • Simple Drive Circuit

Application:

Air quality control

Model MQ137 Technical Parameters:

  • Sensor Type: Semiconductor
  • Standard Encapsulation: Bakelite, Metal cap
  • Target Gas: Ammonia Gas(NH3)
  • Detection range: 5 ~ 500ppm NH3

Standard Circuit Conditions:

  1. Loop Voltage V c ≤24V
  2. DC Heater Voltage V H 5.0V±0.1V AC or DC
  3. Load Resistance R L Adjustable

Sensor character under standard test conditions:

  1. Heater Resistance R H 29Ω±3Ω(room tem.)
  2. Heater consumption P H ≤900mW
  3. Sensitivity S Rs(in air)/Rs(50ppmNH 3 )≥2
  4. Output Voltage △ Vs ≥0.5V (in 50ppm NH 3 )
  5. Concentration Slope α ≤0.6 (R 200ppm /R 50ppm NH 3 )

Standard test conditions:

  1. Tem. Humidity 20 °C ± 2 °C ; 55%±5%RH
  2. Standard test circuit Vc:5.0V±0.1V ; V H : 5.0V±0.1V
  3. Preheat time Over 48 hours

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