WaterCop LeakStopPlus, 3/4 In. FLOOD PREVENTION - For single water appliances like water heaters. SINGLE-POINT LEAK DETECTION - Alerts to water leaks and shuts off water valve automatically when either or both of the two moisture sensor probes get wet. NOTIFICATION OPTIONS - light, buzzer, auto dialer device or security/automation system. SECURITY OUTPUT  Immediate notification of closed valve Ideal for water heaters. INCLUDES  0.75" low lead brass valve, actuator, and two moisture sensor probes. Added property protection Integration with home security &amp; automation systems Protects 24 hours a day while you are home or away Conserves water Peace of mind Two moisture sensors cover both sides of your water appliance Automatically shuts off water supply and sounds alarm Valve remains closed until manually reset Open/close buttons on control box allow manual valve control Two alarm relays to connect external alert devices Bathroom: toilets, bathtubs, showers Kitchen: dishwashers, refrigerators, icemakers Washing Machines Water Heaters Humidifiers Sinks Spigot The LeakStopPlus motorized ball valve The LeakStopPlus electric control box with two attached moisture sensors