The KWS-850 online multi-parameter self-cleaning digital number sensor introduced by the company adopts an integrated design, and the product is reliable and easy to use. Up to 8 parameters can be measured at the same time, and sensor types can be selected such as dissolved oxygen, COD, pH, ORP, conductivity/salinity, ammonia nitrogen, turbidity, etc. Using RS-485 bus, Modbus/RTU communication protocol, data can be directly transmitted to the acquisition platform.