ONETEST-100AQL integrated environmental air quality detector is a high-performance environmental gas detector developed and produced by Shenzhen Wanyi Technology Co., Ltd. based on many years of instrument development experience and combined with sensor technology at home and abroad. The optional parameters are: Carbon monoxide (CO), ozone (O3), nitrogen dioxide (NO2), sulfur dioxide (SO2), temperature, humidity, PM2.5, PM 10, atmospheric pressure, wind speed, wind direction, light, noise, etc., can be real-time monitoring, but also long-term online use; Memory 30M, the data can be stored in real time, and exported by U disk, to achieve automatic drawing of data and curves, so as to facilitate analysis and research.