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Ratio Computers OPEN BOX iX3M Reb

Model: iX001

Product Description

OPEN BOX - the computer has never been in the water but comes without original packaging or manual. Charging cable included. 

iX3M Reb
The best computer in the world to be combined with your rebreather.

Click here to read more about this awesome model. 

Dive Modes:

Air, Nitrox, Trimix, CCR with Connector for Rebreathers, Gauge AVG.
Settable Mix:

10 Gas
+3 Diluents


Buhlmann ZHL-16B
and VPM-B
Algorithms adjustment:

User settable Gradient Factor and Critical Bubble Radius

Vibration, Acoustic, Visual


2.8 inc. 320x240 pixel
Max Depth:



CO2 and O2 (x3)sensors for the Rebeather
The World's First. 

Using the dedicated Sensor Board the iX3M can monitor up to 3 Oxygen sensors and 1 Carbon dioxide sensor directly connected to your Rebreather.

It thinks like a Rebreather 3 Diluents + Automatic or Manual SET POINT 

Let the iX3M switch automatically the Set Points or change them manually.

Set up to 3 different diluents and set the Algoritm's Gradient Factors (or Critical Bubble Radius for VPM).

The iX3M can work perfectly with any kind of Rebreather.

Integrated Global Navigation Satellite System
Just set a point, the iX3M will bring you there. 

A state of the art GNSS that can use all type of satellites systems (GPS; GLONASS; QZSS; SBAS; BEIDOU) provided by all the major nations (USA, Russia, Japan, and China) for a perfect worldwide signal.

  • Set the coordinates of a point and go there.
  • Mark your current coordinates and back there. (e.g. a dive-point or the boat)
  • Track your position, speed and direction. (e.g. to give them to a rescue team

N.B. The satellite signal is not received underwater


A true Double Core Algorithm: 
Buhlmann ZHL16B + VPM-B

The iX3M features both the Buhlmann ZHL16-B and the VPM-B Algorithm.
Both pre-installed, in complete versions and running in Real Time.
You have just to choose from the iX3M menu which Algorithm to use for your dive.


User Settable Gradient Factors and Critical Bubble Radius.
Make the Algorithm yours.

With the iX3M you can adjust the Gradient Factors (for Buhlmann ZHL 16-B) and the Critical Bubble Radius (for VPM-B)

Set the iX3M's Algorithm according to your physical conditions and to the type of dive you are going to perform.

Directly from the menu of the iX3M computer.This is a true Technical Dive Computer.

The iX3M series integrates the real and complete Algorithm to calculate your current tissue saturation and afterwards decompression profile in real time. 

This allows to obtain reliable and very safe decompression profiles

The iX3M Real Time algorithms are so flexible that you can also change their conservatism during the dive. 

Most dive computers algorithms make interpolation of stored data to calculate decompression profiles of the dive profile made by the diver. A cheap way to do it, but you have to adapt your dive to the profiles stored in the dive computer. 
The iX3M is neither more nor less conservative in comparison with the other computers. It is just "right".

Full Deco Table 

Not only the global TTS, but all the deco stops, time and mix to be used. Updated in RealTime, throughout the whole dive.

Tissue Saturation 

Your current tissue saturation. During the decompression you can see which tissues you have to desaturate to continue the ascent.

HD Dive Profile 

The graphic of the current dive diagram, in the magnificent 2.8inc. 144 dpi resolution screen. Updated in Real Time during the dive.

You can change the conservatism, even during the dive. 

What if something wrong with your dive and you have not enought gas to respect the "Time To Surface" indication?

The iX3M allows you to change the conservatism even during the dive to reduce the TTS and brings you to the surface in the safetiest way. 

Manual management of the set Mixes

The iX3M lets you easily perform a Gas Break or manually manage the mix changes, e.g. anticipating the scheduled Mix change at a different depth.

You have the complete control of your technical dive. 

A complete Planner inside A Real Simulation your next dive

Simulate your next dive according to the current settings of the iX3M like mixes, conservatism, etc. and your previous dives. You have just to set the bottom time and the depth. More a Simulator than a Planner.

Vibration Alarms
The iX3M has alarms only you can feel. I
n addition to the traditional visual and acoustic alarms the iX3M feature a very powerful vibration alarm. So powerful you can feel it even with a dry-suit.

The Best Compass ever seen
3D, 1° of resolution and +/- 1° of accuracy
Tilt compensated up to 85° supported by a complete inertial platform.
With visual and numerical indication of the direction and the reciprocal direction. 

Oxygen analyser for iX3M
The World's first computer with Oxygen Analyser Integration.
Simply plug the accessory to your iX3M and transform it in a professional Gas Mix Analyser with a real time completely automatic Gas analysis. Using its sensors the iX3M will check the correct calibration and the atmospheric conditions to make a perfect analysis of the Oxygen % inside the tank.

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