The meter controller uses a 7-inch color LCD screen and can connect to multiple sensors simultaneously. Users can quickly configure sensor information, connect to the controller, and display data and graphs in real-time. It supports wireless data output, can upload the collected data to the cloud, and supports the HTTP and MQTT protocols. Parameter: multi-parameter analyzer, COD, TUR, NO3-N, TOC, NO3-, BOD, TSS, Color, NO2-N, Temperature, pH, DO, ORP, Fe, NH3-N, NH4+, O3, and etc.