Ultrapure Water Ph Sensor

This Ultrapure Water pH Sensor is specially designed for pH measurement in ultrapure water (UPW), pure water, deionized water (DI water) and low-conductivity media. With high-sensitivity pH glass, low-noise signal and anti-dryness double junction reference, it provides fast response and stable readings even in high-purity water environments, widely used in electronics, pharmaceutical, power plant, laboratory and ultrapure water treatment systems.

This ultrapure water pH sensor is specially developed for pH monitoring in ultra-low conductivity environments such as ultrapure water (UPW), deionized water, distilled water and high-purity water, solving the problems of slow response, large drift and unstable readings that occur with standard pH electrodes in pure water.

• High-sensitivity special pH glass membrane: Optimized for low ionic strength solution, ensuring fast response and high accuracy in ultrapure water.
• Anti-dryness double junction reference: Prevents reference poisoning and dry-out, greatly improving stability and service life.
• Low-noise and high-impedance design: Effectively reduces signal interference and drift in low-conductivity media.
• Wide applicability: Suitable for pharmaceutical water, electronics grade water, boiler feed water, power plant water and laboratory pure water.

Standard industrial interface, compatible with 4–20mA / RS485 Modbus-RTU transmitters, supporting immersion, pipeline and flow-cell installation.

MTW-APH2528 Ultrapure Water pH Sensor is a professional high-sensitivity pH electrode specially designed for ultrapure water (UPW), high-purity water and low ionic strength water. It adopts a special pH glass membrane and reference system suitable for pure water, ensuring stable and accurate measurement in low conductivity environments.

This sensor supports standard RS485 MODBUS-RTU communication and optional 4–20mA analog output, enabling stable data transmission and seamless integration with PLC, DCS and water quality monitoring systems. Isolated power supply and anti-interference design ensure reliable operation in industrial sites.
It features automatic temperature compensation, fast response and good stability even in pure water with extremely low ion concentration. The special reference structure reduces pollution and drift, ensuring long service life.

It is widely used in ultrapure water for pharmaceutical, electronics, semiconductor, power plant boiler feed water, laboratory pure water and other high-purity water scenarios.