The Veo 3.0 allows forward and backward navigation through settings and options - and packs a variety of advanced features including our exclusive Dual Algorithm™ into a compact, rugged module. The Oceanic VEO 3.0 continues Oceanic's tradition of designing rugged, feature-rich personal dive computers that are intuitively easy to use and reasonably priced. Featuring Oceanic’s exclusive Dual Algorithm, 2-Nitrox Mix Compatibility, Audible Alarms, 3-Button Interface with settings "Step Back", and so much more. All in a strong, lightweight "hockey-puck" module for your wrist or console. Now available with metric system. 30-DAY SATISFACTION GUARANTEE: We guarantee that at any time during the first 30 days of purchase, your Oceanic product fails to meet your expectations, that product may be exchanged by a participating Authorized Oceanic Pro Dealer. No questions asked. Powered by Oceanic's Exclusive Dual Algorithm™ - Your choice between Pelagic DSAT (Spencer/Powell data basis) or Pelagic Z+ (Buhlmann ZHL-16C data basis) 3 Operating Modes: NORM (Air and Nitrox), GAUGE (with run timer) and FREE (tracks calculations to allow switching between NORM and Free) 3 Operating Buttons with "Step Back" interface – allows forward and backward navigation through menus and settings Switch between up to 2 Nitrox mixes to 100% O2 with no restriction (Gas 1 may be up to 100%, and may be less or greater than Gas 2) Stop times < 3 minutes - displays minutes & seconds Deep Stop with Countdown Timer – Maybe turned on or off. 2 minute countdown at half your max depth, for dives greater than 80 ft / 25m Single button access to "Last Dive" display (max depth & bottom time) Data Retention - maintains calculations indefinitely when the battery is changed Audible Alarm with flashing LED light SmartGlo Backlighting senses ambient light, enabling the backlight