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. The MQ-5 has high sensitivity to LPG and other natural gases.
Specifications:
- High sensitivity to LPG: butane (C4H10), propane (C3H8)
- High sensitivity to methane (CH4)
- Adjustable sensitivity
- Supply voltage: 5 V
- Power: 950 mW (the sensor becomes hot during operation)
- Both digital and analog outputs
- Dimensions: 52 x 20 x 18 mm
Applications:
- Gas leak detector for car, boat, motorhome, and home use
- Industrial detector for combustible gases
- Portable gas detector
- Popular sensor with many available examples for different platforms
Pin connections:
- AO: Analog output
- DO: Digital output
- GND: Ground
- VCC: 5 V supply voltage