Seac Action HR Dive Computer

Seac® ACTION HR is easy to use with 3 main modes:SCUBA MODE: full management of recreational dive profiles with a Bühlmann ZHL-16C decompression algorithm for 1 or 2 mixes(air, Nitrox, and mixes with O2 concentrations up to 99%).GAUGE MODE: Depth gauge and stopwatch for managing your dive profiles independently.FREEDIVING MODE: Dive/surface time, current/maximum depth. Main features:- LOGBOOK MEMORY: SCUBA mode: 40 hours with records every 5”.- FREEDIVING mode: 18 hours of activity with records every 2”.- Safety warning: MOD exceeded alarm, deco stop violated alarm, ascent speed alarm, NoFly time and desaturation calculations, maximumpermitted altitude warning.- “NDL only” Dive Planner.- Dive Manager software for MAC/PC (requires Windows 10), available free of charge at Seacsub.com.- Ultra-durable structure treated for improved resistance to blows, corrosion, and swings in temperature.- LCD screen with contrast and adjustable-intensity backlighting.- Long-lasting CR2450 battery.