The Rosemount 3900 and 3900VP sensors provide reliable pH/ORP measurements for various industrial applications. Designed for precision and durability, these sensors offer efficient control of processes, enhancing operational efficiency. The accompanying manual provides essential information on installation, calibration, and maintenance, ensuring optimal performance. These sensors are ideal for demanding environments where accurate readings are crucial for process control. For more details, the latest Rosemount 3900 manual can be obtained directly from Keco Controls at 732-901-5900