Mares Puck Pro Wrist Computer

Super easy-to-use, full-featured computer, improving on the original concept, larger display in a slimmer design, upgradeable firmware, and multi-gas capability, all the bells and whistles, precision stopwatch, Mares-Wienke RGBM (Reduced Gradient Bubbles Model) algorithm, special function modes, air, nitrox, and bottom time, precautionary programs, setting plan mode, backlighting, log book, fresh water/sea water setting, residual nitrogen memory reset, user-replaceable CR 2450 lithium-ion battery, altitude adjustable to 12,100' (3,700 meters), memory capacity 36 hours, superior display readability, mineral glass crystal, 492' (150 meters) depth rating, power indicators, audible alarms, watch, date, and temperature displays, 12/24 hour formats, two different gas mixtures during single dive, metric or imperial units of measure, ascent rate indicator and digital ascent rate indicator, quartz clock movement, durable rubber wrist strap.