What Are Electrode Water Quality Sensors?
An electrode water quality sensor uses electrochemical technology to measure key water parameters with high precision.
These sensors are widely used in wastewater treatment, drinking water safety, aquaculture, and industrial process control. Unlike optical sensors, electrode sensors are ideal for measuring ionic parameters such as pH, ORP, conductivity, and chlorine residuals.
At Googolwater, our electrode water quality sensors feature digital signal output via RS485 (Modbus RTU) communication. As a result, they integrate easily with SCADA systems, data loggers, and cloud monitoring platforms. Furthermore, all models carry CE and RoHS certifications for global compliance.
Who Uses Electrode Water Quality Sensors? Our electrode sensors serve a wide range of industries. For instance, municipal water utilities rely on our pH and free chlorine sensors to ensure drinking water safety. Meanwhile, wastewater treatment plants use ORP and ammonia nitrogen sensors for biological treatment monitoring. In addition, aquaculture operators use EC and TDS sensors to manage water salinity and conductivity for optimal fish health. Our measurements align with guidelines from the U.S. Environmental Protection Agency and the World Health Organization.
Not sure which sensor fits your application? Browse our Water Quality Sensor Selection Guide or contact our technical support team — we respond within 24 hours.
Our Electrode Sensor Product Range ：
We offer six types of electrode water quality sensors to cover all key parameters.
First, our Digital pH Water Sensor uses a modular design for easy replacement in the field.
Second, the ORP Water Sensor monitors oxidation-reduction potential for disinfection control.
Third, our Free Chlorine Sensor and Total Chlorine Sensor support drinking water safety compliance.
Fourth, the EC TDS Salinity Sensor measures conductivity, total dissolved solids, and salinity simultaneously.
Finally, our Digital Ammonia Nitrogen Sensor tracks NH3-N levels critical for aquaculture and wastewater discharge limits.
All six sensors output digital signals via RS485 Modbus RTU. Therefore, they connect directly to any standard PLC, SCADA, or cloud monitoring system. In addition, each unit ships with full calibration documentation and a one-year warranty.