Everything you need to know about the Azoth System 02 Odyssey sensor

01/27/2026

Everything you need to know about the Azoth System 02 Odyssey sensor

Everything you need to know about the Azoth Systems range

Hi divers!

We all learned the same rules at the start of our training: respect your stops, don't ascend too fast, and drink plenty of water. But deep down, we know we aren't robots. Why should a fit 20-year-old diver and a tired instructor after their third rotation of the day follow the exact same mathematical algorithm?

This is where the wizards at Azoth Systems come in. Based in Toulon, France, this team of engineers and researchers decided to transform decompression : moving from pure statistics to real-life biology.

Azoth Systems O-Dive Range

Here is everything you need to know about this ecosystem that is revolutionizing our safety.

The facts : why are our computers "blind"?

Our current computers are brilliant, but they don't know if you are cold, stressed, or sleep-deprived. They calculate your decompression based on a statistical average from thousands of dives. Azoth Systems analyzed over a million real dives to create O-Dive : the first system capable of "seeing" the microbubbles circulating in your blood after surfacing.

The O-Dive sensor : your post-dive "check-up". The sensor looks like a small bar of soap or a hockey puck. It's not a gadget; it's a high-tech ultrasonic Doppler sensor.

O’DIVE is the culmination of more than 10 years of research, backed by four scientific theses and several patents. Over a million dives have been analyzed, in collaboration with renowned French scientists and doctors specializing in hyperbaric research.

The O’DIVE intelligent decompression sensor allows divers, after each immersion, to measure the level of vascular microbubbles in their body using Doppler technology.

Connected to O’DIVE servers, the system analyzes both personal physiological measurements and dive data to provide the diver with a decompression quality index, a true reflection of their post-dive recovery.

Originally designed for technical divers using Trimix, Heliox, and rebreathers, O’DIVE is also perfectly suited for air and Nitrox diving. it allows divers to better assess their safety, adjust their computer settings based on provided recommendations, or even adapt their practice (gas choice, dive profile) to optimize decompression.

The O’DIVE sensor marks a genuine revolution in scuba diving safety. while most computers rely on standard decompression models, none take into account the diver's actual physiological state, fatigue, or individual response to the dive. O’DIVE does.

O’DIVE is establishing itself as the essential tool of the future to enhance safety for all divers.

How does it work?

  1. Placement : it is not placed on the heart, but under the collarbones (subclavian veins). why? because the signal is much clearer there, without the mechanical noise of heart valves.

  2. Timing : you perform two series of 20-second measurements per side. for air or Nitrox, this is done at 30 minutes and then 60 minutes after surfacing to catch the "peak" of microbubble formation.

  3. Analysis : data is sent to Azoth servers via your smartphone. A few minutes later, you receive your Quality Index (QI).

Quality Index (QI) : your safety score

The QI is a score from 0 to 100% that tells you if your decompression procedure was adapted to your physiology that day.

QI Score Meaning DCS Risk
75% to 100% good quality procedure very low (< 5 / 10,000)
50% to 75% intermediate quality significant room for improvement
0% to 50% practice needs improvement critical threshold (risk > 1%)

The cool part : the app includes a simulator. If your score is low, you can virtually test scenarios : "what if I had added 5 minutes to my stop?" or "what if I had switched to Nitrox 50?". The app immediately shows you how your score would have improved.

The Odyssey computer and ODC sensor : when your gear learns to know you

Odyssey Dive Computer

We already knew the sensor, but Azoth Systems is going further. The idea? no longer just analyzing bubbles after the dive, but integrating this intelligence directly underwater. With the Odyssey computer and the ODC pressure sensor, the loop is closed.

The Odyssey isn't just a beautiful 2.4-inch high-definition TFT color screen, it is the first computer in the world to incorporate a decompression model assisted by your own biological response.

What changes for us :

If the O-Dive sensor is the eye, the Odyssey is the brain. It is one of the most rugged computers on the market (waterproof to 200 m).

  • Zero mechanical buttons : it uses piezoelectric "Y" keys, so there's no risk of leaks through the buttons.
  • Just an AA battery : no more proprietary chargers left at home. It runs on a standard user-replaceable AA battery. Depending on the model (alkaline or lithium), autonomy varies between 40 and 80 hours.
  • Decompression that fits you : by connecting to your O-Dive app, the Odyssey adjusts its conservatism (via the Bühlmann ZH-16C algorithm) based on your real Doppler measurements.
  • Total connection : it retrieves your bubble data to offer you a personalized conservatism.
  • Evolutive : from recreational (Air/Nitrox) to extreme technical diving (Trimix, Rebreather), it accompanies you everywhere.

Discover the ODYSSEY computer protection too! why risk damaging your Odyssey computer screen while climbing the boat ladder?

Equip it with a protector : it effectively shields your dive computer from shocks and scratches while maintaining full access to the three innovative piezo buttons.

The ODC sensor : monitor your air and breathing profile

The latest arrival is the ODC pressure sensor (Air or Nitrox/O2). It screws onto the first stage of your regulator and communicates with the Odyssey via a stable, low-energy wireless Bluetooth signal.

Its real safety "plus" :

  • Multi-tank management : the Odyssey can handle up to four transmitters simultaneously. perfect for tech divers with multiple deco stages or rebreather divers.
  • Breathing profile analysis : more than just a pressure gauge, it transmits your consumption data. After the dive, the app crosses your respiratory rate with bubble formation to refine your physiological profile.

ODC Pressure Sensor

Safety budget

Investing in the Azoth ecosystem is an investment in your long-term health. Here are the price ranges :

Product / Pack Approx. Price (incl. VAT) Target Audience
O-Dive €850 recreational / tech divers
Air / Nitrox Transmitter €460 tech / Trimix / CCR divers
Odyssey Computer €1,095 tech divers / explorers
Odyssey + O-Dive Pack €1,945 complete personalized solution

note : analyses are unlimited and free for the owner and one chosen buddy.

Community feedback : in real tests in Marseille, experienced divers who strictly followed their classic computers found scores as low as 54%. This proves one thing : we all produce bubbles differently.

O-Dive and Odyssey do not replace your caution, but they finally give you the keys to understand what is truly happening in your body once you are back on the boat.

Ready to switch to personalized decompression? Find the entire Azoth Systems universe in our shop to dive more serenely than ever! click here to see more

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