Home Question Answer How does an MQ2 gas sensor work? How does an MQ2 gas sensor work? The MQ2 gas sensor operates by detecting a change in resistance of the sensing material when the gas comes in contact with it. It is also heater-driven and is covered with two layers of fine stainless steel mesh known as an “anti-explosion network”. 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