A pH sensor is a sensor used to measure the pH of a solution, and its principle is based on electrochemical reactions. A pH sensor usually consists of a glass electrode and a reference electrode. The inside of the glass electrode is coated with a glass membrane that reacts with hydrogen ions in the solution to generate a potential difference to measure the pH of the solution. This ASP300 online pH sensor is a combination electrode with double salt bridge design, long service life and fast response. The sensor is packaged in an enhanced ABS plastic case with a solid structure. It can be connected with our pH ORP controller to realize continuous online monitoring of the pH value of water quality. Features High precision: The pH sensor can realize high-precision pH measurement, and the internal temperature unit can also be selected to monitor the temperature of the water quality at the same time, and the temperature compensation can be performed by connecting the instrument High rel…