MQ-4 Methane Gas Sensor Expand

MQ-4 Methane Gas Sensor

9MGMQ-4

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R69.95

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This is a simple-to-use compressed natural gas (CNG)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.

For more info:

http://playground.arduino.cc/Main/MQGasSensors

https://www.sparkfun.com/datasheets/Sensors/Biometric/MQ-4.pdf
 

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