... refrigerators, dishwashers, sinks, aquariums, sump pumps, water heaters, and anywhere with potential water damage2) Specification:Working Voltage: 12VMax. working current: 80mAStandby ... sensor wire(8pcs) 2. AC adaptor12V- CE,UL approval 3. Control unit 4. electric ball valve(1/4",3/8" 1 ... objects that may cause false warning sound. Ground water detector system with solenoid valve for stop water leak