The new Poolwatch pool alarm system works with both above-ground and in-ground pools to provide you with an efficient yet trouble-free solution to pool security. Loaded with patented features, the Poolwatch is designed to make your swimming environment safer for your family, guests and pets. Innovative and intelligent software coupled with high-tech sensors will detect intrusion into the pool by a young child, while not having false alarms caused by wind, rain, floating objects or automatic cleaners. 1 year warranty. Featuring quick and easy installation on to a deck or pool rail, our high-tech sensor detects entry into the pool of anyone 18 lbs or more. The receiver sounds alarm when the unit is activated in the pool. This alarm features a 100-ft wireless range with new sensor technology that reduces false alarms. The pool alarm is NSF certified to meet ASTM F2208 requirements. The alarm includes 110-volt AC powered receiver (with 9-volt battery backup; battery not included). Requires six (6) D size batteries (not included) for sensor. 1 year limited warranty.