The YF-8801-SO2 sulfur dioxide detector is independently developed by Yifan Technology and is suitable for continuous monitoring of sulfur dioxide in unorganized environmental air; The product is equipped with high-precision sensors, using pump suction sampling monitoring, and built-in multiple pre-treatment systems, including dust removal, water removal, and filtration, which can effectively protect the sensors from infringement and ensure the accuracy and stability of monitoring data. Yifan Technology's sulfur dioxide monitoring system has functions such as 24-hour continuous monitoring, over limit alarm, and data storage. At the same time, the data can also be connected to the environmental protection platform.