MQ-7, MQ-7 Carbon Monoxide Sensor, MQ-7 Datasheet, MQ-7 Pinout, MQ-7 Working, MQ-7 Features, MQ-7 Applications Hello peeps! I hope you are having a good day. We all know carbon monoxide is a dangerous and harmful gas that can even be fatal. It is a colorless and odorless gas so it is difficult to sense its presence therefore, different types of sensors and indicators are required to make the places safe espe ...