This product is suitable for drinking water, various water supply systems and recirculating aquaculture water. It adopts RS-485 (Modbus RTU protocol) signal output, which can be easily connected with PLC, DCS, industrial control computers, general controllers, paperless recorders, touch screens and other third-party equipment. It adopts 3/4 NPT thread design for submerged installation, which is convenient for installation in pipelines, water tanks and other occasions, with IP68 protection level, and can output conductivity and TDS at the same time.

ZW-TH-PR split-type online total hardness sensor uses patented PVC film Ca-Mg ion electrodes to measure water total hardness (as CaCO3) with 0~1000.0mg/L range and 0.1mg/L resolution, ±10% reading accuracy. Equipped with Pt1000 automatic temperature compensation, T90<60s, IP68 protection and 3/4NPT multi-installation mode. It supports RS485/ModbusRTU (optional 4-20mA) output, low power consumption, easy connection to PLC/DCS, and two-point calibration. The stable reference system extends electrode life, ideal for industrial water quality monitoring.

This professional self-cleaning RS485/Modbus multi-parameter water quality sensor features an integrated industrial-grade design. It supports simultaneous measurement of 8 water quality parameters (e.g., DO, COD, pH) with customizable configurations. Equipped with an automatic cleaning system, it effectively prevents microbial adhesion and cuts maintenance costs significantly. Adopting RS485 bus and Modbus/RTU protocol, it transmits data directly to collection platforms. With IP68 waterproof rating, POM+316L materials and easy submersible installation, it enables long-term accurate online monitoring for various water quality scenarios.