This methane gas sensor detects the concentration of methane gas in the air and outputs its reading as an analog voltage. The concentration sensing range of 300 ppm to 10,000 ppm is suitable for leak detection. For example, the sensor could detect if someone left a gas stove on but not lit. The sensor can operate at temperatures from -10 to 50°C and consumes less than 150mA at 5VDC.

This sensor comes in a package similar to our MQ-3 alcohol sensor, and can be used with the gas sensor breakout board.