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A simple-to-use Carbon Monoxide (CO) sensor, suitable for sensing CO concentrations in the air. The MQ-7 can detect CO concentrations anywhere from 20 to 2000ppm. This sensor has a high sensitivity and fast response time. The sensor's output is an analog resistance. The drive circuit is very simple; Just connect it to 5V, GND, and the output to an ADC via a resistor.
Can be mounted on suitable breakout board 41004066.