Product description
MQ-2 Semiconductor Sensor for Combustible Gases. The sensitive material in the MQ-2 gas sensor is SnO2, which has low conductivity in clean air. When the target gas (a combustible gas) is present, the sensor’s conductivity increases with 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-2 has high sensitivity to LPG (liquefied petroleum gas), propane, and hydrogen, and it can also be used for methane and other combustible vapors. It is cost-effective and suitable for a wide range of applications.
Features:
- Good sensitivity to combustible gases across a wide concentration range
- High sensitivity to LPG, propane, and hydrogen
- Long service life and low cost
- Simple drive circuitry
Applications:
- Domestic gas leakage detector
- Industrial combustible gas detector
- Portable gas detector
Technical Specifications:
- Operating voltage: 5 V
- Current consumption: 40 mA
- Both digital and analog outputs
- Popular sensor – many examples available for various platforms
Pinout:
- AO: Analog output
- DO: Digital output
- GND: Ground
- VCC: 5 V power supply
