Methane CNG Gas Sensor - MQ-4
Product details
| Management number | 205893604 | Release Date | 2025/11/02 | List Price | $16.19 | Model Number | 205893604 | ||
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This is a simple-to-use [compressed natural gas (CNG)](http://en.wikipedia.org/wiki/Compressed_natural_gas) sensor, suitable for sensing natural gas (composed of mostly Methane [CH4]) concentrations in the air. The MQ-4 can detect natural gas concentrations anywhere from 200 to 10000ppm.
This sensor has a high sensitivity and fast response time. The sensor's output is an analog resistance. The drive circuit is very simple; all you need to do is power the heater coil with 5V, add a load resistance, and connect the output to an ADC.
This sensor comes in a package similar to our MQ-3 alcohol sensor, and can be used with the breakout board below.
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