Detect leaks and floods early before they cause more costly water damage with the Pro Series Water Sensing - Leak and Flood Alarm. This inexpensive device is a great value providing you with an early warning of flood and leaks. Solid & cheap insurance! Accidents happen... great backup for leaks and floods from air conditioners, water heaters, relief valves, boilers, back-flo preventors, washing machines, sump pumps, pipes, valves, fittings; storm water foundations, windows, doors, roofs and any potential water source.