VR Technology VRx OLED Air / Nitrox / Trimix Computer VRx OLED - C3 009240

Video: VR Technology VRX Air/Nitrox/Trimix Scuba Diving Computer
Mfg Part #: C3

Air & Nitrox Compatible

  • The latest in dive computer technology
  • Can be used for  open circuit air, nitrox and trimix
  • Compact, low profile size
  • Easy to read large, Brilliant OLED color screen 
  • High resolution graphics
  • User adjustable decompression from air to trimix
  • New VGM (Varient Gradient Model) decompression model (VGM option)
  • New graphic feature that displays your profile ahead of time
  • Tracks the pressure of up to four cylinders  simultaneously
  • Comes equipped with I/O link (C9) and PC link (C11) options
  • Comes equipped with 3 x O2 cell monitoring capability (3cell pin – hardware not included)
  • Built in L.E.D. back up light  
  • Twist mode for changing screens
  • Easy to use controls
  • Automatic display screen flipping
  • User changeable Imperial/Metric
  • Dual rechargeable batteries
  • COLOR: Grey
  • DEPTH: 1000 feet / 305 meters

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Questions and Answers for VR Technology VRx OLED Air / Nitrox / Trimix Computer:

  • Ricardo:

    Hi, Are you going to provide the C4 version of this computer? Thanks. Rico.

    Darrick  (Certified Scuba Instructor at Scuba.com):

    Hello Ricardo, this is a new computer and is not on the market. But yes once it is out we will carry the C4 version.

  • Bob:

    Is this computer available now? I believe there is a HUD upgrade C56 available. Does this upgrade include a cable or junction box to interface to the oxygen sensors? If available, what is the price of the upgrade including necessary pins for TriMix, CCR, 3 Cell monitoring, and the HUD.

    Bill  (Certified Scuba Instructor at Scuba.com):

    Email to info@scuba.com so we can follow up on the items.


The VRX is fitted with a rechargeable Lithium-ion battery. A multi-voltage charger is supplied, and it will recharge a completely flat battery in approximately 3 hours

The battery level is shown in percentage on the main front dry screen. 


It is not necessary to power up the VR before you dive. The screen will automatically power up within a minute of exposure to an absolute pressure of 1.3 BAR or greater. Note: This means in practice that if you do a very fast descent the VR compouter may not switch on until you are at depth.


VR Dive computers use a derivative of the Buhlmann ZHL 16 algorithm modified to assimilate the latest thinking in practical micro-bubble avoidance for enhanced decompression safety.

The VRx can also be configured to use our new VHM alogrithm. You will note than on decompression dives, the Buhlmann algorithm will prompt for deep-water controlling stops of 2 minutes in duration. Deep-water stops are recognized by their duration (normally two minutes) and + next to the time. It is important these these stops are conducted correctly for a safe decompression as they help to reduce the problems associated with potential micro-bubble growth during an ascent.


Dive computers calculate decompression based on the inert gas partial pressures. This is the only accurate way to estimate decompression requirements. Decompression computers are an aid to decompression and backup tables and depth/time instrumentation should always be carried. 

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