The Pro Series High Water Alarm is designed to minimize the risk of water damage by acting as an early warning system. For over two decades, the Pro Series High Water Alarm has been protecting homes from water damage. The compact unit can be placed next to a water heater, beneath a laundry tub, under a sink, behind a refrigerator, next to the air conditioner—anywhere water or moisture can collect. All it takes is ¹⁄₃₂" of water to sound a piercing, 110 dB alarm, detecting water before mold can grow and alerting you to potential flood conditions. It includes 6 feet of wire for extending the sensor to hard-to- reach locations. You can even increase the wire length up to 100 ft. The built-in accessory jack allows for additional sensors or a high water float to be connected to the unit.