TSS-406-S integrated on-line suspended matter sensor is designed and manufactured by the principle of scattered light suspended matter measurement method. When a beam is shot into the water sample, the light is scattered by the suspended matter in the water sample. By measuring the intensity of the backscattered light and comparing it with the internal calibration value, the suspended matter in the water sample can be calculated, and the final value can be output after linearization. scattered light principle, internal temperature sensor support RS - 485, Modbus/RTU protocol, 4-20 ma current output fiber structure, external light interference ability the infrared LED light source, high stability IP68 protection, within the depth of 20 meters