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Oceanic VEO 3.0 - Packed With Advanced Features For Flexibility In Diving

Oceanic VEO 3.0 - Packed With Advanced Features For Flexibility In Diving

Oceanic VEO 3.0 has improved and friendly interface, Dual Algorithm, Double Gas Mix, and Switching Gas Mix options made this dive instrument really unique from the point of specs, features and price view!

General Information
User Interface
Your Review



So far Oceanic VEO 3.0 dive computer is the most advanced and the latest model of the Veo line dive computers made by this well-known company. It can be recommended dive computer for technical divers, thanks to its double Nitrox gas mix capabilities and newbies in scubadiving may find this scuba dive computer very useful, if they are serious about progressing in diving skills!

If we compare two Oceanic computers - VEO 3.0 and GEO 2.0 – it is obvious that these dive computers are located very close to one another from characteristics and performance point of view, except few things that are worth to mention here.

GEO 2.0 is made as a dive watch computer and can not be placed into the console, also it has different user interface with 4 operating buttons (and different set up sequence because of that), smaller operational depth for Gauge mode, and it has full set of functions for digital watch.

Comparing VEO 3.0 with VEO 2.0, we may notice, that Oceanic VEO 3.0 received improved user-friendly interface, by allowing you to perform STEP BACK during setting up or accessing functions, it has Gauge Mode Run Timer, and VEO 3.0 acquired double gas mix feature and, of course, gas switching option.


Oceanic VEO 3.0 Features Card

Copy this Oceanic VEO 3.0 Features & Alarms Card for your Reference and Share with your friends and buddies!


Oceanic VEO 3.0 has Dual Algorithm feature – it means that you may choose between liberal and conservative diving. And you may make this dive computer even more conservative by setting Tissue Loading Bar Graph (TLBG) alarm (ON/OFF) and Personal Conservative Factor (ON/OFF), and to say it in easy language – setting these values to ON status will move you further away from exceeding No-Decompression Limits (NDLs).

Algorithms are listed below:

  1. Pelagic DSAT – use it for liberal diving, and to add more conservatism you may adjust Nitrogen Tissue Loading Bar Graph alarm and set your Personal Conservative Factor;
  2. Pelagic Z+ - use it for conservative diving, and by choosing this algorithm, you will increase conservative factor by 15 – 20% right away - this option is a great benefit for those people who involved in frequent and challenging diving conditions, divers who are overweight, and people who dive in cold water conditions or those who didn’t dive for a long period of time



Benefits of using Oceanic VEO 3.0 dive computer

  • you will have advanced dive computer suitable for starter technical diver;
  • you will be able customize it deeply to your particular needs, including freediving;
  • you can build triple NAVCON with VEO 3.0 by adding compass and SPG or wear it as a wrist dive computer;
  • you may replace battery yourself without losing settings with data retention feature








User Interface
3 buttons
Dive Modes
Air, Nitrox, Gauge, FREEdive
Dual: Pelagic DSAT & Z+
Number of Gas Mixes
Air, 21% - 100%
1.2 - 1.6 ATA
Safety Stop (SS)
Deep Stop (DS)
Conservative Factor
Altitude adjustment
Gas Switching
Dive Planner
9 - 57 meters
Logbook Capacity
24 most recent dives
Max Operational Depth
Air/Nitrox/FREEdive - 100 m; Gauge - 120 meters
Backlight duration
0/5/10 sec
Sampling Rate
2/15/30/60 sec
User Replaceable Battery
Data Retention
PC Interface
2 years










Oceanic VEO 3.0 has 3 buttons on the interactive control panel: MINUS, ADVANCE and SELECT. In VEO 3.0 interface MINUS button is used to step back during accessing menus and setting up the parameters, and also to access gas switching during diving.


 Oceanic VEO 3.0 dive computer
Oceanic VEO 3.0 dive computer


VEO 3.0 has 2 bar graphs (like VEO 2.0) to assist you on your way down and up:

  1. Nitrogen Tissue Loading Bar Graph (TLBG) - shows you no-decompression and decompression status: when you go deeper and dive time increases, segments will be added to TLBG, and when you ascend – amount of segments decreases therefore giving you more time to stay underwater; 4 or less segments represent No-Decompression status, and when all 5 segments are displayed – it indicates that you are in Decompression situation;
  2. Variable Ascent Indicator Bar Graph (VARI) – represents your ascent rate at certain depths; when your ascent rate is higher than allowed – all segments on VARI will flash, audio signal will come up and flashing message SLO pops up.


Oceanic VEO 3.0 dive computer doesn’t have a separate or shared bar graph for O2 accumulation, but instead it shows oxygen level numerically with % symbol.







On surface you will have an access to variety of functions of Oceanic VEO 3.0 (Time to Fly and Time to Desaturate, Log and History Modes, PC interface and Plan Mode, Reset function) and you may set variety of parameters, which divided to the certain groups.

Below I listed, as an example, some of them:

  • FO2: Gas 1 FO2 – Air, 21% - 100% and Gas 2 FO2 - Air, 21% - 100%;
  • Depth alarm - set point from10 to 100 meters;
  • Elapsed Dive Time (EDT) alarm - OFF, 10 – 180 minutes;
  • Tissue Loading Bar Graph (TLBG) alarm;
  • Dive Time Remaining (DTR) alarm - OFF, 5 – 20 minutes;
  • PO2 alarm - 1.2 ATA – 1.6 ATA;
  • Units;
  • Deep Stop - ON/OFF;
  • Safety Stop - ON/OFF and Safety Stop Depth and Time set points;
  • Algorithm - Pelagic DSAT or Pelagic Z+;
  • Personal Conservative Factor - ON/OFF;
  • Backlight duration – 0/5/10 seconds;
  • Time and date;
  • Dive Operating Mode, etc.







As a dive computer, Oceanic VEO 3.0 operates in 3 modes:

  1. Normal Mode – when you set it for Air or Nitrox;
  2. Gauge Mode – in this mode VEO 3.0 functions as a depth gauge and timer only and doesn’t perform calculations for nitrogen absorption and oxygen accumulation;
  3. Freedive Mode – this mode is for diving without scuba gear

For each Dive Mode, whether VEO 3.0 was set for Normal, Gauge, or Freedive, this dive computer has main and alternative displays to show you all related data to any situation. To swap between them you need to press Advance button for less than 2 seconds.

For backlight activation - press SELECT button (the same button you will use to acknowledge alarms), and as this dive computer has Gas Switching option – MINUS button is designed to access Gas Switching function.


Oceanic VEO 3.0 NO-DECO Card

Copy this Oceanic VEO 3.0 NO-DECO Displays Card for your Reference and Share with your friends and buddies!


In No-Decompression Mode you may have Deep Stop prompt if Deep Stop option was set to ON before. In this case VEO 3.0 will display values related to Deep Stop function, like Stop Depth and Time, and Stop icon (bar and arrows).

If you set Safety Stop function to ON – Oceanic VEO 3.0 will prompt you by beeping and displaying attributes for Safety Stop, like Safety Stop icon (bar and arrows), Stop Depth and Time counting down.

I may tell that display layouts of VEO 3.0 and VEO 2.0 dive computers are very similar, except VEO 3.0 has Gas tank number icon. And they manage all Dive Modes in similar way too.


During the dive you may exceed No-Decompression time and depth limits. In this case dive computer will activate Decompression mode – audio alarm will come up and 5 segments on TLBG, UP Arrow icon and alarm LED will flash.

After having that, you need to ascend safely to the required depth, shown on the display, or a bit deeper, and stay at that depth required time that is shown as well. When you complete required Decompression time, next shallower Stop Depth will be displayed and you may ascend to that level to continue decompression process, and so on.

To assist us to complete decompression correctly, VEO 3.0 has main and alternative displays with all information we need. Below you may see the summary of Decompression Stop main and alternative displays:

  • current depth;
  • Total Ascent Time (TAT);
  • Stop Depth and Time;
  • Stop icon (bar and arrows);
  • TLBG with 5 segments;
  • Elapsed Dive Time (EDT);
  • %O2 with O2SAT icon;
  • PO2;
  • FO2;
  • max depth;
  • time;
  • temperature;
  • applicable icons (NX, Algorithm selected, Gas tank number, etc.)


It happens sometimes when you may create violations during Decompression Mode, like Conditional Violation, for example. It means that you ascended to shallower depth than required for Decompression Stop and maybe stayed at that shallower depth for a while. In that case you won’t get any off-gassing credits but instead you will receive a penalty time that must be worked off before, actually, off-gassing credit may be acquired.

To help us out in violation situation Oceanic VEO 3.0 has specific displays with information listed below:

  1. current depth;
  2. Total Ascent Time (TAT);
  3. TLBG;
  4. Stop Depth and Time;
  5. Stop Bar and Down Arrow – to manage your ascent and descent;
  6. applicable icons


When you descend to required Decompression Stop Depth and stay within stop zone – you will get full solid Stop icon (Stop Bar and Down/Up Arrows).

During single dive you may switch gas mixes easily, by pressing ‘Minus’ button for Gas Preview and Select button for Gas selection. And, of course, VEO 3.0 has all information ready for us on the display, like Gas 1 and 2 graphics, and set point FO2 for each gas.


Oceanic VEO 3.0: Diving In GAUGE Mode

If Oceanic VEO 3.0 dive computer was set for Gauge Mode, it will work as a depth gauge and timer and won’t calculate nitrogen and oxygen accumulation.

Below is an example of the displayed information from main and alternative screens when diving in Gauge Mode (to access alternative displays – press shortly ADVANCE button):

  • current depth;
  • max depth;
  • Elapsed Dive Time (EDT);
  • VARI when you ascend;
  • time;
  • temperature


Oceanic VEO 3.0: FREEdiving

You may use Oceanic VEO 3.0 for freediving, because it has set of special features to assist you during freediving and also it calculates your nitrogen exposure that you may have from previous dives.

To use VEO 3.0 for freediving you need to set Freedive Mode and access and customize special functions available for freediving activities, like Countdown Timer (CDT), Freedive Elapsed Dive Time (EDT) Alarm and Freedive Depths Alarms.

All these functions are available from Free Surface Menu and they are similar to freedive functions of Oceanic VEO 2.0 dive computer.


Countdown Timer (CDT) may be set and toggled between ON/OFF. During freedive you may easily view CDT status on the alternative display and then Start it or Stop it.

Freedive Elapsed Dive Time (EDT) Alarm is different thing from Elapsed Dive Time (EDT) Alarm as you set it previously for Air and Nitrox.
It is factory preset for 30 seconds and you may toggle it ON/OFF. This means that every 30 seconds of your time underwater you will hear audio comes up to remind you that another 30 seconds of freedive have gone.


Also Oceanic VEO 3.0 allows you to set 3 Free Depth Alarms, each at progressively deeper depths. Set points are in a range from 10 meters to 100 meters (30 ft – 330 ft).
So, when you reach certain depth that was set – you will hear an audio signal and depth value will be showed up on the display.

Below is a summary of information of what you will get during freedive from main and alternative displays (to swap between main and alternative displays – press Advance button shortly):

  • current depth;
  • temperature;
  • Dive Time Remaining (DTR);
  • Elapsed Dive Time (EDT);
  • TLBG;
  • applicable icons;
  • Countdown Timer (CDT) status;
  • max depth reached;
  • time


Also, each Freediving alarm, which we set previously, will give us its specific type of display with all related information.

If you have High Nitrogen alarm during freedive - VIO graphic and full TLBG are displayed and your No-Decompression Time (NDC) will be displayed as 0 (zero). It happens if you nitrogen level from previous dives reaches Decompression condition (VEO 3.0 tracks nitrogen absorption between dives in Normal and Freedive Modes).

When you resurface - Oceanic VEO 3.0 scuba dive computer will lock itself to Violation Gauge Mode (VGM) for 24 hours, meaning that you need to stay out of any sort of diving, because VEO 3.0 doesn’t do any calculations related either to nitrogen or oxygen during VGM condition.


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After the Transition Period you will have access to following modes of Oceanic VEO 3.0:

  1. Plan Mode (Air and Nitrox Modes) and Pre Dive Planning Sequence (PDPS) – this function shows you for how long you may stay underwater safely and at what depth, according to your current nitrogen or oxygen accumulation, Algorithm selected, settings of Personal Conservative Factor and FO2;
  2. Time to Fly Countdown Timer;
  3. Time to Desaturation Countdown Timer;
  4. Log Mode (Air, Nitrox, and Gauge Modes only, Freedive information is only available if you use OceanLog PC interface download) – it stores data of your 24 most recent dives (battery removal does not make any affect on Log memory);
  5. History Mode (Air, Nitrox, and Gauge Modes only, Freedive information is only available if you use OceanLog PC interface download) – accumulates information, like number of dives, number of dive hours, and Max depth achieved from all your previous dives, lowest temperature recorded, etc. (battery removal does not make any affect on History memory);
  6. PC interface – this function allows you to upload and download data from VEO 3.0 to PC by using special cable and software;
  7. Reset function – this feature allows you to do RESET to all data including Logs, and nitrogen and oxygen calculations – great beneficial feature if you use VEO 3.0 for rental and training purposes







Oceanic VEO 3.0: What Divers Say


  • clear display, easy to read at greater depths even without backlight;
  • dual algorithm for conservative and liberal diving;
  • excellent user interface - has STEP BACK feature - very convenient;
  • smooth switching between gas mixes;
  • recommended dive computer for advanced recreational divers and beginners



  • optional PC interface;
  • documentation is not easy to learn


As you may see Oceanic VEO 3.0 - is the next step in development of dive computers from previous models of Veo line that can be mounted into the consoles.

Packed with features and new options this Oceanic computer can easily satisfy not only beginner, but also technical divers and freedivers.


Improved and friendly interface, Dual Algorithm, Double Gas Mix, and Switching Gas Mix options made this dive computer really unique from the point of specs, features and price view!

I spent not much time learning dive computer, because I've already had experience with these electronic buddies. But if it is your first instrument - be prepared to learn user manual thoroughly in order to master Oceanic VEO 3.0.

While diving with VEO 3.0 or working with Oceanlog software, I didn't find any troubles or inconveniences - everything worked like a swiss watch.


Oceanic Veo 3.0 dive computerOceanic Veo 3.0 Wrist
Dive-Computer-Wizard Rating
golden star golden star golden star golden star golden star


If you want to have dive computer that has it all in one package and computer that allow you to grow into by supporting all your needs and progress fast in your diving career, and if you want to pay very reasonable and competitive price - you have to consider Oceanic VEO 3.0 as your dive buddy!



Add comment
Bradyn, 23 August 2013 16:21
From North To South - Oceanic VEO 3 Is My Great Buddy

I've been diving around the world for more than 20 years and has had lots of experience with dive computers. My latest investment was Oceanic VEO 3 SWIV Triple Gauge NAVCON Console. I tested its strength from north waters in far Canada to warm Caribbean ocean - dive computer works as a swiss watch!

I love its user interface with possibility to step back, which is faster option than scrolling all over again. VEO 3 is fully customizable - I may select algorithm, turn on-off Deep and Safety stops and Conservative Factor - which is good for different dive conditions. Double gas mix option lets me improve my decompression stage and gives me flexibility in multilevel diving.

Display has large area, it's very easy to read, and all digits are big and sharp.

I think, Oceanic VEO 3 is best suited to recreational divers with experience, or if you are a beginner - be ready to learn user documentation and dive computer before going to dive with it!

Keith, 21 July 2011 15:06
Does Oceanic Veo 3.0 Keep Tracks Of Average Depth?

Love this computer, but I was wondering if it keeps track of your average depth for the dive. This is essential to track your gas consumption instead of guessing and always checking the SPG!

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