Home Question Answer What is an MQ2 gas sensor? What is an MQ2 gas sensor? An MQ2 gas sensor is a Metal Oxide Semiconductor (MOS) type of gas sensor that is sensitive to the presence of flammable gases. It is also known as a chemiresistor. Related Questions How much power does the MQ2 gas sensor consume? What is an “anti-explosion network”? How is the MQ2 gas sensor different from other gas sensors? What is the purpose of the SnO2 semiconductor layer in the MQ2 gas sensor? How does the output of the MQ2 gas sensor change when it is exposed to different gases? What happens when a cloud of smoke is created using an incense stick near the MQ2 gas sensor? What is the power consumption of the MQ2 gas sensor? How does the digital output of the MQ2 gas sensor change when exposed to smoke? Load More