Features: -Place the Leak Alarm in any potential flood spot - next to bathrooms, basements, kitchens, boats, garages or etc. When the Leak Alarm detects even a small water leak, it sounds a very loud alarm and lets you know that you have a problem that needs your immediate attention. -Automatic operation. Once its three contactors touch water, it will sound immediately with 120dB loud alarm; -No buttons, no programming, just place it where you want to check water leakage; -Powered by a 9-volt alkaline battery(Not included)and normally a new battery can last for 1 year; -Use by water heater, sink cabinet, sump pump, washing machine, radiators and more; -Made of durable ABS Plastics. It is specially designed to float in flood circumstances. Specifications: Material: ABS Plastic Color: White Cable lenth: 1 meter Working voltage: 9v Battery: 9V Alkaline Battery (Not included) Package include: 1 x Water Leak Alarm