The ZM102 is a compact, low-power digital AQS (Air Quality System) module designed for automotive air conditioning applications. It integrates a MOS gas sensor, MEMS manufacturing technology, and a high-performance microprocessor to monitor the level of air pollution in the vehicle's external environment. Installed at the air conditioning intake, the module monitors the quality of incoming air; upon detecting pollution, it promptly triggers the system to switch to recirculation mode, thereby maintaining clean cabin air and protecting passengers from pollutants. This high-performance sensor module represents a seamless combination of proven detection technology and superior circuit design.