Divesoft DNA Nitrox/Oxygen Analyzer Review
Compact, reliable Nitrox analyzer that pairs via Bluetooth to your phone. Ideal for recreational divers who want accurate readings, fast calibration, and stable performance, as long as you are comfortable using a smartphone app and keeping spare coin cell batteries on hand.
Overall Score: 8.9 / 10 (Strong)
See current pricing at: Dive Right In Scuba
Last updated: July 2025
I've used the Divesoft DNA Analyzer for a full year as my primary tool for analyzing Nitrox fills. It has been with me across quarry dives, day boats, and coastal trips, and has proven consistently reliable. While it does require a smartphone to view readings, the app works without internet access and has never let me down. The analyzer runs on a single CR2450 coin cell battery, which has lasted through a full year of regular use without replacement.
No. It requires the Divesoft app to view gas readings, connected via Bluetooth. The app does not require internet access to function, so it is fully usable in remote or liveaboard settings.
Yes. I have used it to analyze dozens of Nitrox fills and it has always been stable, even after long gaps between dives. Calibration with air is quick and consistent.
No. I use it directly on the tank valve. As long as you crack the valve slowly, it works perfectly without any extra hardware.
Yes, although I only use it for recreational Nitrox fills. The sensor can handle higher oxygen levels, but that is beyond my current training and needs.
I do not use the app’s digital logging feature. I label tanks with tape and a permanent marker, which is simple, fast, and clearly visible to other divers.
Pros & Cons
| Pros | Cons |
|---|---|
| Compact and rugged build | Requires smartphone to view readings |
| Accurate and consistent readings | No built-in display |
| Air calibration is fast and reliable | Requires spare coin cell batteries |
| Battery life is excellent | May not appeal to low-tech users |
| Protective case included |
Why I Chose Divesoft DNA Analyzer
I needed a Nitrox analyzer that was compact, durable, and easy to travel with. The Divesoft DNA stood out for its clean design, stable calibration, and small footprint. I already trusted the brand’s engineering, and I preferred the simplicity of replacing a CR2450 battery over worrying about charging cables. I chose it over screen-based models because I always have my phone with me, and I liked how little space it takes up in my kit.
Verdict
This analyzer has been a consistent part of my diving workflow. It lives in its original case with a marker for tank labeling and gets used before every Nitrox dive. I have never had to recalibrate it on a trip, and I have never seen it return a questionable value. It does exactly what I need, without taking up space or attention.
Would I buy it again? Yes. It fits how I dive, and I would choose it again without hesitation.
Who Divesoft DNA Analyzer Is Best For
This item is best suited for:
- Recreational Nitrox divers who value portability and precision
- Divers who are comfortable using a phone as part of their kit
- Traveling divers who want a simple, durable analyzer
It may not be ideal for:
- Divers who avoid using phones around dive operations
- Those who want a built-in screen and tactile controls
Deep Dive into the Score
Scoring System: Each category is scored out of 10 and weighted by importance. This model is used consistently across all gear reviews for transparency.
| Category | Score | Raw Score | Weight | Weighted |
|---|---|---|---|---|
| Function & Performance | Exceptional | 9.0 | 30% | 2.70 |
| Ease of Use | Exceptional | 9.0 | 20% | 1.80 |
| Versatility | Exceptional | 10.0 | 15% | 1.50 |
| Durability & Build Quality | Strong | 8.0 | 15% | 1.20 |
| Value | Exceptional | 9.0 | 10% | 0.90 |
| Brand Trust & Transparency | Strong | 8.0 | 10% | 0.80 |
| Total | 8.90 / 10 | |||
Rounded Display Score: 8.9 / 10 — Strong
Deep Dive Score Explanations
- Function & Performance – 9: Stable, fast, and accurate. Always works as expected.
- Ease of Use – 9: Quick setup, intuitive app, and zero confusion. You just need your phone.
- Versatility – 10: Works with direct tank valves, flow adapters, and multiple oxygen ranges.
- Durability & Build Quality – 8: Tough casing with no damage after a year. Just keep the battery stocked.
- Value – 9: Great return on cost. Reliable without being over-engineered.
- Brand Trust & Transparency – 8: Divesoft has a solid reputation and a loyal user base.
My Custom Setup or Configuration
I store the analyzer in its original zip case. I added a permanent marker to the case for labeling tanks immediately after analysis. I do not use any adapters or digital logging.
- Storage: Original Divesoft case with added pen
- Usage Method: Direct valve sampling, no accessories
This setup is dead simple and fits the way I dive. I do not need anything more from an analyzer at this time.
Performance on Land
- Calibration: Calibrates reliably with air
- Tank Valve Use: Excellent stability with direct sampling
- Travel & Conditions: Compact and safe in quarry, boat, and coastal use
- Battery Life: One CR2450 battery has lasted over a year of moderate use