SmartPool PoolEye Aboveground Pool Alarm w/ Remote Receiver For above ground pools up to 24' round or 16' x 32' oval pools Comes with poolside and in-home remote alarms. Alarm detects objects 15 lbs or more, has a 120 decibel alarm siren (95 decibels at 10ft.) Has child-proof ON/OFF switch with audio indicator, remote receives signal up to 100ft Water-resistant/weatherproof construction, poolside alarm operates on one 9 Volt battery (not included)