MQ-2 Datasheet PDF – Gas Sensor

Part Number: MQ-2

Function: GAS SENSOR

Package: Module Type

Manufacturer: Unspecified


MQ-2 Datasheet PDF



They are used in gas leakagedetecting equipments in family and industry, are suitable for detecting of LPG, i-butane, propane, methane,alcohol, Hydrogen, smoke.

Sensitive material of MQ-2 gas sensor is SnO2, which with lower conductivity in clean air. When the target combustible gas exist, The sensor’s conductivity is more higher along with the gas concentration rising. Please use simple electrocircuit, Convert change of conductivity to correspond output signal of gas concentration.

Image and Pinouts:

MQ-2 pinout


1. Sensitive for LPG, propane, hydrogen
2. Output voltage boosts along with the concentration of the measured gases increases
3. Fast response and recovery
4. Features boost circuit
5. Adjustable sensitivity
6. Signal output indicator
7. Wide detecting scope
8. Fast response and High sensitivity
9. Stable and long life
10. Simple drive circuit


Gas leakage detector

Reference Site:

Other data sheets are available within the file: MQ2

MQ-2 Datasheet PDF Download

MQ-2 pdf