MQ4 - Methane (CNG) Natural Gas Sensor Module
|300ppm to 10000ppm
|3 to 5 V
This MQ4 High Sensitivity Methane Gas Sensor can sense the presence of Compressed Natural Gas (CNG), methane (CH4) in the air. It provides an analog output corresponding to the concentration of the gases in the air and an easy to use digital output. The digital output can be easily interfaced to microcontrollers and other circuits.
The maximum gas concentration beyond which the digital output gets triggered can be set by using the onboard potentiometer. The onboard LED signals the presence of any gas.