Home Question Answer What type of gas sensor is used in a fire alarm system? What type of gas sensor is used in a fire alarm system? A gas sensor used in a fire alarm system is typically a metal oxide-based gas sensor. Related Questions What is an MQ2 gas sensor? What type of gas sensor is used in fire alarm systems? How does an MQ2 gas sensor work? What type of gases can an MQ2 gas sensor detect? What are the output pins of an MQ2 gas sensor? What is the power requirement for an MQ2 gas sensor? What are the real-time applications of MQ2 gas sensors? How is an MQ2 gas sensor triggered? Load More