MQ-2 LPG, Propane and Hydrogen Gas Sensor Module

MQ-2 LPG, Propane and Hydrogen Gas Sensor Module

Regular price $2.40

Sensitive material of MQ-2 gas sensor is SnO2, which with lower conductivity in clean air. When the target combustible gas exists, The sensor’s conductivity is higher along with the gas concentration rising. The MQ-2 gas sensor has high sensitivity to LPG, Propane, and Hydrogen, also could be used for Methane and other combustible steam, it is with low cost and suitable for different application.


  • Good sensitivity to Combustible gas in a wide range
  • High sensitivity to LPG, Propane, and Hydrogen
  • Long life and low cost
  • Simple drive circuit

Some Applications:

  • Domestic gas leakage detector
  • Industrial Combustible gas detector
  • Portable gas detector

The following conditions must be prohibited:

Exposed to organic silicon steam

Organic silicon steam cause sensors invalid read, sensors must avoid exposing to silicon bond fixture, silicon latex, putty or plastic contain silicon. 

High Corrosive gas

If the sensors exposed to high concentration corrosive gas (such as H2Sz, SOX,Cl2,HCl etc), it will not only result in corrosion of sensors structure, also it causes sensitivity attenuation.

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