The Walchem Intuition-9 Series flow controller features unparalleled versatility and powerful programming for complete control of chemical metering pumps and valves in a broad range of water treatment applications. The universal sensor input provides extraordinary flexibility allowing it to be used with almost any type of sensor needed. The four I/O slots allow complete flexibility in adding sensors, analog outputs, and Linear Polarization Resistance (LPR) corrosion sensors. Three to twelve relay control outputs allow the controller to be used in more applications.