Place the leak alarm in any potential flood point-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 you have a problem that needs your immediate attention. Automatic operation. Once its three contactors the water, it sound immediately with a strong 110dB alarm; No buttons, no programming, just place it where you want to check for water leaks; Use by water heater, sink cabinet, sump pump, washing machine, radiators and more; Made of ABS plastic. It is specially designed to float in the event of a flood. Specifications: Cable length: 1 meter Operating voltage: 9v Battery: 9V alkaline battery (not included) Alarm: 110dB Colour: white Material: ABS Size: 98 x 46 x 22mm Package Contents: 1 x Alarm Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.