The AquaMetrix PTX and RTX Series pH and ORP Sensors feature digital output, reducing noise and offering higher immunity from stray voltages. Calibration is stored in the sensor, eliminating intermediary transmitters. Replaceable salt bridge redesigned for easy replacement with no special tools.

Universal flat‑face glass process electrode with larger surface area ensures quick readings and outstanding performance. Self‑cleaning flush fit when installed inline minimizes upkeep. Process electrode encased in protective PPS layer for increased physical damage resistance. Differential measurement technology uses two glass electrodes with respect to a third metal electrode, virtually eliminating ground loop problems. Sensor can be restored to factory condition at modest cost by replacing salt bridge and reference solution.

Automatic temperature compensation via thermistor at probe tip. Compatible with any 1″ NPT fittings, serving as drop‑in replacement. Applications: process control, water/waste treatment, fume scrubbers, plating, food/beverage, chemical processing, pulp/paper, mining, power generation, pharmaceutical.