Product description
MQ-2 semiconductor sensor for combustible gases. The sensitive material in the MQ-2 gas sensor is SnO2, which has low electrical conductivity in clean air. When the target gas (a combustible gas) is present, the conductivity of the sensor increases in proportion to the gas concentration. A simple electronic circuit can be used to convert this change in conductivity into a corresponding output signal representing the gas concentration. The MQ-2 has high sensitivity to LPG (liquefied petroleum gas) and other combustible gases.
Specifications:
- Good sensitivity to combustible gases over a wide concentration range
- High sensitivity to LPG: butane (C4H10), propane (C3H8)
- High sensitivity to methane (CH4), hydrogen (H2), alcohol, and smoke
- Supply voltage: 5 V
- Power: 950 mW (the sensor becomes hot during operation)
- Detection range: 300 - 10 000 ppm
Applications:
- Gas leak detector for home use
- Industrial detector for combustible gases
- Portable gas detector
- Popular sensor with many available examples for different platforms
