The Poolguard Safety Buoy pool alarm is the only floating pool alarm on the market with Sub Surface Detection Technology and NSF Certified to the ASTM F2208 pool alarm standard. Ideal for any above ground pool, soft sided portable pools and spas. The new sensing technology provides less chance of false alarms due rain, wind, and small objects. The Safety Buoy includes an in-home remote siren with a 200 ft range, storage stand, tethering supplies, and magnetic key for easy resetting. Poolside siren sounds at 85+ decibels for up to 10 ft. Designed and tested by one of the top rated manufacturers of pool and door safety alarms, Poolguard/PBM Industries. Proudly manufactured in the USA and includes a one year manufacturer warranty.