pH Sensor are designed to measure the acidity of a solution Oro PH sensor model Oro PH IS designed for various Industrial Applications. Four ceramic junction reference aids in the sensor’s Resistance to harsh Environments and helps prolong sensor life. The robust sensor design makes the Oro PH reliable in a wide range of aqueous solution found in pipelines, open tanks or ponds. General Features: Four ceramic junction - Fast response due to increased porosity, Increase sensor Life Filled with Gel - Helps to maintain zero potential for longer Time Industrial Grade rugged construction Easy Installation