The air quality monitoring system is specifically designed to accurately capture the concentrations of harmful substances such as PM2.5, PM10, NOx, and SO2 in the air. It utilizes laser scattering and electrochemical sensing technologies to achieve synchronous monitoring of multiple parameters with real-time data updates. The device casing is made of corrosion-resistant aluminum alloy, paired with a waterproof and breathable membrane, adapting to various outdoor climates. Its advantage lies in high precision and stability, enabling 24/7 monitoring to promptly detect air pollution incidents. Widely used in urban air quality grid monitoring, industrial park emission regulation, and transportation hub air quality assessment, it provides strong support for public health and urban planning.