The Basement Watchdog Water Alarm is an effective early warning system that detects unwanted water as shallow as 1/32" deep, protecting your home from costly water damage. Place it on the floor near water heaters, sump pump pits, washing machines, or under sinks, with a 6' wire that can be extended into a sump pump or mounted on a wall. The loud 110Db alarm ensures you'll hear it throughout the house, and the battery saver feature keeps batteries fresh longer. Powered by a single 9V battery (not included), this alarm operates efficiently, only using energy when the alarm is sounding. Comes with a 5-year warranty for peace of mind.