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MQ136 Gas Sensor


This is a simple-to-use hydrogen gas sensor module, that comes with the MQ136 gas sensor and circuitry to offer plug and use feature.

5,500 6,000

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Description

The sensitive material of the MQ136 gas sensor is SnO2, which exhibits lower conductivity in clean air. As H2S gas concentration rises, the sensor’s conductivity increases, allowing users to convert the conductivity change to gas concentration through a simple circuit. Moreover, the MQ136 gas sensor is highly sensitive to H2S and can effectively monitor organic vapour containing sulfur. This low-cost sensor is suitable for various applications.

Application

It is widely used in

  • civil H2S gas alarms,
  • industrial H2S gas leakage alarms
  • portable H2S gas detectors
  • the detection of toxic gas, harmful or hazardous gas.

 

  • Specifications
Model MQ136
Sensor Type Semiconductor
Standard Encapsulation Bakelite, Metal cap
Target Gas Hydrogen Sulfide(H2S gas)
Detection range 1~200ppm
Standard Circuit Conditions Loop Voltage Vc 5.0V±0.1V  DC
Heater Voltage VH 5.0V±0.1V AC or DC
Load resistance RL Adjustable
Sensor character under standard test conditions Heater Resistance RH 30Ω±3Ω(room temp.)
Heater consumption PH ≤950mW
Sensitivity S Rs(in air)/Rs(50ppmH2S )≥3
Output Voltage △Vs ≥0.5V(in 50ppm H2S)
Concentration Slope α ≤0.6(R200ppm/R50ppmH2S )
Standard test conditions Tem.  Humidity 20℃±2℃;55%±5%RH
Standard test circuit Vc:5.0V±0.1V; VH: 5.0V±0.1V
Preheat time Over 48 hours

 

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