Methane, CNG sensor MQ4 breakout

Have you ever wondered how much natural gas and methane are in your living room? You can easily measure that! The MQ4 breakout board is a simple-to-use sensor that detects the natural gas and methane (CH4) in the air. Once heated to working temperature, it detects changes in air concentrations very quickly between 200 and 10000 ppm.

On the through-holes, the DO stands for digital out and AO for analog out. The digital output is obtained by setting a threshold value using the potentiometer. The analog output will depend on the intensity of the gas around the sensor.

Dimensions: 38 mm x 22 mm
Logic voltage level: 5V
Operating voltage: 5V
Operating temperature: -10°C to 50°C (14 to 122 °F)
Gas detection: CNG (compressed natural gas), methane
Gas detection range: 200-10000 ppm
Preheat time: 24 hours
Mounting holes: 2