The PoolEye™ Inground Pool Alarm's patented wave detector protects your pool while eliminating false alarms due to wind and rain. Our underwater sensor sounds an alarm when objects weighing 15-pounds or more fall into the pool and is adjustable to prevent false alarms. The alarm sounds at the pool and also at the remote receiver, which can be located up to 100-feet away. The unit also displays air and water temperature in fahrenheit or celsius. The alarm is packed with safety features including childproof on/off switch, low battery signal, power check test button, 2 RF channels and AC adapter for the remote. Comes complete with ladder and deck mounting hardware and installation instructions manual. Powered by one 9-volt battery (not included). 1-year manufacturer's warranty. For pools up to 18' x 36' (larger pools need two alarms).