EC (Electrical Conductivity) sensor for water is a device used to measure the ability of water to conduct an electric current. The conductivity of water is directly related to the concentration of dissolved ions (such as salts, minerals, and other charged particles) in the water. The RK500-13 EC Sensor is an advanced, maintenance-free device designed for real-time electrical conductivity (EC) measurement in demanding environments. Utilizing anti-polarization technology and internal signal isolation, it ensures stable, interference-resistant performance. Ideal for applications such as aquaculture, water quality testing, wastewater treatment, and oil/gas pipeline corrosion monitoring, this EC meter sensor delivers accurate, reliable data with minimal setup complexity.