This is a simple-to-use compressed natural gas (CNG) sensorsuitable 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 5Vadd a load resistanceand connect the output to an ADC.
This sensor comes in a package similar to our MQ-3 alcohol sensorand can be used with the breakout board below.Mikroelectron.com offer a wide range of high sensitivity and fast responsive methane cng gas sensor-mq-4 online @ JD7.00 with free shipping.methane cng gas sensor - mq-4
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