An Online pH Indicator is an electronic instrument used to continuously measure and display the pH value of liquids in real time. It determines whether a solution is acidic, neutral, or alkaline by measuring the concentration of hydrogen ions (H+). It is permanently installed in a process line or tank for continuous monitoring without manual sampling
The pH electrode measures the hydrogen ion concentration and generates a small electrical voltage proportional to the pH value. The transmitter converts this signal into a pH reading and continuously displays it. When integrated with control systems, it can trigger alarms or control dosing pumps.
Used in water treatment plants, chemical industries, pharmaceutical manufacturing, food and beverage processing, wastewater treatment, power plants, agriculture, and laboratories.
An online pH indicator is an essential industrial instrument that provides accurate real-time pH measurement, improves efficiency, enhances product quality, reduces manual effort, and supports automated process control.