ProMinent® 7500441 pH Sensor, offer optimum life and precise control for most aquatics’ applications. ProMinent offers a two-year warranty and all SN6 connections are sealed to prevent exposure to the elements. Optimum performance is achieved when sensors are mounted in a modular proprietary clear PVC housing that can be retrofitted in the field. All components, including a controller, can be assembled on a back panel that can easily be mounted to any wall.