Versatile Dive Computer with Surface GPS for Your Diving Adventures:Explore worlds of adventure, underwater or topside, with Descent Mk1 dive computer with surface GPS. It’s the first watch-style dive computer to offer surface (land or water) GPS navigation with color mapping, multisport features and wrist-based heart rate. You can plan your dives right on the computer, then use GPS waypoints to mark your dive entry and exit points. Choose modes for single and multiple gas dives (including nitrox and trimix), gauge and apnea. There’s also a built-in three-axis compass for navigation above or below the waterline. The computer activates automatically underwater and uses the proven Buhlmann ZHL-16c algorithm with configurable conservatism settings. Selectable tone and vibration alerts help keep you informed and safe throughout your dive. Premium full-featured watch-style dive computer with surface GPS, bright 1.2″ (30.5 mm) color display, built-in TOPO mapping, three axis compass, altimeter and multisport features. Elegant style: Available in 2 distinctive styles: a stainless-steel bezel with silicone watch band or a deluxe DLC-coated titanium bezel version with brushed DLC titanium bracelet. Select from multiple dive operating modes (single-gas, multi gas, gauge, apnea and apnea hunt). High-sensitivity GPS and GLONASS receiver provides surface navigation and automatically marks your dive entry and exit points. Displays depth, dive time, temperature, NDL/TTS,