Keep your pool safe with this wireless sensor pool alarm. The alarm sound level is up to 100dB, which is loud enough to wake you up even from a distance. This pool alarm is compatible with in-ground pools up to 32 x 16 ft and has a connected distance of 360 ft. The alarm can be set to four different modes - Surveil, Swim, Mute, and Off - depending on your preference.
eBay