The MH-T7012A carbon dioxide gas sensor is a general-purpose intelligent infrared gas sensor that uses the non-dispersive infrared (NDIR) principle to detect carbon dioxide gas in the air. It features excellent selectivity, no oxygen dependence, stable performance, and long lifespan; it also has built-in temperature compensation. This sensor is a compact, high-performance device created by combining mature infrared absorption gas detection technology with micro-machining and sophisticated circuit design.