Household Anti-Leak Alarm, Water Immersion Detector, Washing Machine Drainage Overflow Water Level A

Automatic operation. Once its three contactors touch water, it will sound immediately with 85dB loud alarm;No buttons, no programming, just place it where you want to check water leakage;Requires 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 ABS It is specially designed to float in flood circumstances.Size(Diameter x Height): about 8.2 x 3.2cm (3.23 x 1.26inch )working voltage: 9vBattery: 9V Alkaline Battery (not included)Alarm: 90 dBWireless Water Leak Detector Sensor 90 dB Volume Water Leakage AlarmColour:WhiteMaterial:absPackage Contents:1 x Anti-leak alarmOnly the above package content, other products are not included.Note: Light reflection 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.