Carbon Monoxide Sensor (MQ7)

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Simple-to-use Sensor Can detect CO-gas concentrations anywhere from 20 to 2000ppm Very Simple Drive Circuit Power Supply: 5V The Carbon Monoxide Sensor (MQ7) is a simple-to-use Car bon Monoxide (CO) sensor suitable for sensing CO concentrations in the air. It can detect CO-gas concentrations anywhere from 20 to 2000ppm. The sensor's output is an analog resistance. Show more