PoolEye alarms are equipped with the most advanced pool alarm technology available subsurface wave detection. PoolEye alerts you to accidental falls into the pool and unwanted pool intrusion while eliminating false alarms from wind, rain, falling leaves, etc. It detects objects weighing 15 lbs or more entering the pool, and all models feature adjustable sensitivity. A PoolEye alarm is an essential addition to any pool safety program. All aboveground pool models monitor pools up to 24' round or 16' x 32' oval*. The PoolEye PE12 is the standard above ground pool model, and the PE13 for aboveground pools is equipped with both poolside and in-home remote alarms. All in ground PoolEyes monitor pools up to 18' x 36'*. The PE20 is PoolEye's standard in ground pool alarm and the PE21, also for in ground pools, comes with both poolside and in-home remote alarms and a poolside air/water temperature monitor. In addition to subsurface wave detection technology, the PoolEye PE22 for in ground pools features an added layer of protection Infrared "Night Vision", which monitors the pool area. The PE22 also comes equipped with an in-home remote alarm that alerts you with human voice announcements and/or siren, depending on the level of intrusion. LAYER 1 - Perimeter Detection Preventive alert system Passive infrared motion detector (PIR) range of 180 degrees and up to 50' Independent On/Off control with child-proof lock In-home remote receiver features voice announcements when perimeter alarm is set off Automatic reset in 30 seconds Adjustable PIR sensitivity LAYER 2 - Immersion Detection Patented sub-surface wave detection Sensor placed below water surface eliminates false alarms due to wind, rain, falling leaves, etc. Detects objects 15 lbs or more Adjustable sensitivity 120 dB alarm siren, 95 dB at 10 ft. at poolside Remote Features Built-in RF channel A or B select Remote receives signal up to 100' away Remote can be connected to a home security system Remote announces "check the pool" 3x then perimeter alarm signal detected Remote announces "emergency! check the pool!" and sounds alarm when underwater alarm signal received Remote announces "check the battery" when low battery signal received from poolside unit Remote uses AC power adapter (UL/CSA listed) Back-up 9 Volt battery (not incl.) for remote