The Oceanic Geo 2.0 includes Dual Algorithm, Deep Stop option and a redesigned user interface with “Step Back” – which allows forward and backward navigation through menus and settings. Additionally, a second Nitrox mix (both programmable to 100%) is available, as well as Firmware Auto-Update which allows the user to download and install operational improvements or even future new features through the PC Interface (with optional cable).  Powered by Oceanics Exclusive Dual Algorithm - Your choice between Pelagic DSAT (Spencer/Powell data basis) or Pelagic Z+ (Buhlmann ZHL-16C data basis) 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) - 4 Operating Modes - 2 Nitrox Mix الحالة مستعمل النوع الغوص الحر والغطس