The sensitive material of the 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. Please use a simple electro circuit, Convert the change of conductivity to correspond to the output signal of gas concentration.MQ-2 gas sensor has a high sensitivity to LPG, Propane, and Hydrogen, also could be used to Methane and other combustible steam, it is with low cost and suitable for different applications.
Specification
Good sensitivity to Combustible gas in a wide range
High sensitivity to LPG, Propane, and Hydrogen
Long life and low cost
Simple drive circuit
Application
Domestic gas leakage detector
Industrial Combustible gas detector
Portable gas detector