Product description
MQ-5 semiconductor sensor for LPG and methane. The sensitive material in the MQ-5 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. MQ-5 has high sensitivity to LPG (liquefied petroleum gas) as well as town gas/biogas. Compared to MQ-6, MQ-5 has higher sensitivity to lighter hydrocarbons, such as methane.
The sensor can be mounted on a suitable breakout board 41004066.
Specifications:
- High sensitivity to LPG: butane (C4H10), propane (C3H8)
- High sensitivity to methane (CH4)
- Supply voltage: 5 V
- Power: 950 mW (the sensor becomes hot during operation)
- Detection range: 300–10,000 ppm
- Dimensions: Ø19.5 x 24 mm (with pins)
Applications:
- Gas leak detector for car, boat, motorhome (LPG) as well as the home (town gas/biogas)
- Industrial detector for combustible gases
- Portable gas detector
- Popular sensor with many available examples for different platforms
