(Minature Ascent Rate Alarm) is an audible ascent rate monitor designed to help prevent decompression sickness, better known as the bends. • Features Include: • Audible ascent rate • Safety decompression stop • Alarm heard only by diver • Easily heard through a hood • Superior precision electronics • Industrial grade • Lasts 5 years or 1,000 dive hours • A MUST-HAVE FOR ALL DIVERS!