MQ-8, MQ-8 Hydrogen Gas Sensor, MQ-8 Datasheet, MQ-8 Pinout, MQ-8 Working, M-8 Applications Hey fellow! Welcome to the next article on the MQ series of sensors, and today our focus is on the MQ-8 which is used to sense the presence of hydrogen gas. We know that hydrogen is a colorless, odorless, and tasteless gas that humans can not sense easily. It is not toxic like carbon monoxide and ot ...