Using the LifeBuoy app, you can alter the sensitivity of the lifebuoy pool alarm, change the length of the alert-in-case-of-alarm, and control the alarm state. When the pool cover is removed, the lifebuoy will sound an alarm. LifeBuoy has the only technology that can trigger an alarm when a pool cover is still on the pool. Lifebuoy was designed with portability in mind. Light and compact, you can take it with you on vacations and trips and Lifebuoy can be used with almost every type of pool, spa or garden pond.