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The industrial conductivity sensor provides RS-485 (MODBUS/RTU) and 4-20mA outputs for connection with controllers, touch screens, and third-party systems. The EC sensor uses a contact-type graphite electrode with a large surface area to reduce polarization, and a built-in temperature sensor for measurement compensation. SUCH conductivity sensor comes with an M16-5 waterproof connector for easy installation, and its ABS, POM, and 616L stainless steel casing ensures protection against fouling and corrosion. With a range of 05000μS/cm, working temperature of 065℃, and 12~24VDC power supply, it can be used in surface water, pipelines, wastewater, agriculture, industrial processes, and marine monitoring.
There are two main types:
Electrode (contact) sensors: Use metal electrodes that directly contact the liquid; suitable for low to medium conductivity ranges such as ultrapure water, drinking water, and boiler feedwater.
Inductive (electrodeless) sensors: Use electromagnetic coils and do not contact the liquid directly; best for high-conductivity, corrosive, or dirty solutions like acids, alkalis, and wastewater.
Electrodes: Stainless steel, titanium, platinum, or graphite, chosen for corrosion resistance.
Body/insulation: PVC, PVDF, or PEEK for chemical durability.
Cable and sealing: Waterproof and chemical-resistant for industrial environments.
Most industrial conductivity sensors offer outputs such as 4–20 mA, 0–10 V, RS485 (Modbus RTU), and sometimes frequency or pulse signals. These allow integration with PLCs, transmitters, or digital controllers.
