State of the Art moisture sensor stops leaks in RO systems and other water filtration systems. Upon sensing moisture, Leak Controller will engage the shut-off valve and sound an alarm. The water source is cut off, stopping the leak while the alarm continues to sound until the valve is manually reset. By preventing continuous water flow, mold and property damage are restricted and user liability is reduced. Leak Controller is designed for simple installation and operation.ﾠMakes a great low cost insurance policy. Features: One Button system Testing/Silence LeakLogic™ RISC Based Logic Control Valve to Tubing Connection Sizes: 3/8" For Plastic and Copper Tubing Sensor Contacts Stainless Steel Plated 2 Sensor Mats One Sensor Included with Coin Test Slot and Series Connectors Built with Superiour Impact reistant ABS Plastic Built With Superiour Impact resistant ABS Plastic with Streeed Components Reinforced with Nylon and Glass Material Water Detection Sensitivity Down to x ppm TDS (total dissolved solids) Conformal Coating on the Printed Circuit Board