GRD-GLD1 GUARDIAN LEAK DETECTORPN GRD GLD1 * The Water Detector enables Guardian to act the moment a leak or flood strikes. Three separate sets of sensors, the Bottom (Main) Sensors, the Drip Tray, and the Remote Sensor Probe, act together to monitor any appliance or fixture, such as toilets, ice makers refrigerators, and washing machines for leaks. 1000 Wireless range 15 year battery life Detects as little as three drops of water Waterproof housing Built in temperature and tamper