Curious about the MQ2 gas sensor working principle? At Campus Component, we break down the science behind this essential sensor. The MQ2 works by detecting gas concentrations based on changes in resistance levels when exposed to combustible gases. Its tin dioxide (SnO₂) sensing layer reacts to gases, triggering the alarm system. This fundamental knowledge is key to building efficient ... https://www.campuscomponent.com/blogs/post/gas-leak-detection-alarm-system-utilizing-mq2-sensor