MQ-4 Methane CNG Gas Sensor - (AD4560)

Description:

This is an easy-to-use compressed natural gas (CNG) sensor suitable for detecting natural gas (primarily composed of methane [CH4]) concentrations in air. The MQ-4 can detect natural gas concentrations ranging from 200 to 10,000 ppm.

This sensor has high sensitivity and a fast response time. The sensor output is an analog resistor. The control circuit is very simple; all you have to do is feed the coil to the connector with 5V, add a load resistor, and connect the output to an ADC.

Documents:

• Data sheet
• Wiring example

Links of interest:

Reference 1