ORP Controller/Transmitter is a microprocessor based device which finds application for measurement of pH, oxidation reduction potential, or moisture content. It is completely suitable to be used in harsh environments where chance of dust, moisture, & chemical contamination is common. This controller is designed having strong metallic body with digital screen for showing readings. It is a sensor-based device which assures quick set-up and calibration in user friendly manner. ORP Controller/Transmitter finds application in wastewater treatment, municipal, and pulp & paper industries. It is known to have compact structure and is easy to maintain & install.