MQ4 Methane Gas Sensor Module
MQ4 Methane Gas Sensor Module is a Compressed Natural Gas Sensor (CNG), which is mostly made up of methane (CH4), it is suitable for sensing natural gas concentrations in the air. The MQ4 can detect natural gas concentrations anywhere from 200 to 10000ppm.
This sensor has a high sensitivity and fast response time. The module outputs an voltage from 0 to 5V relative to the gas concentration.
Note: PCB dimension, and color may vary slightly.
Note: Power off circuit before connecting/disconnecting the sensor