New swimming pool alarm Best swimming pool alarm in china as above ground swimming pool alarm, inground swimming pool alarm and perimeter swimming pool alarm better than poolguard, pool guard, child guard, sensor espio, sonarguard and aquaguard. Safe and reliable, meeting the testing certificates of nf p90-307/a1 and astm f 2208-08. It consists of two parts, base unit (for parents) and wrist bracelet (for children). Including three functions: 1. Anti-drowning alarm: when the wrist bracelet is immersed into the water, the base unit will sound alarm and vibrate immediately. 2. Anti-lost alarm: when the wrist bracelet is leaving a presettable distance (0-50m), the base unit will sound alarm and vibrate immediately. 3. Personal alarm: when parents meet an emergency, they can fast press help button to alert people around to ask help, like a sos. Display colour box