OXYGEN Analyzer by FORENSICS | 0%-100% with 0.1% resolution | Scuba, Nitrox, Divers | Water Resistant Case |

I bought this to ensure that our at-home hyperbaric oxygen therapy's oxygen supply was working properly (it is). This device proved to be very easy to set up and use - trivial even - and allowed me to test the supply. I use it both to test the output of the oxygen supply as well as the in-chamber ambient oxygen level. I haven't yet tried to use it inline - I'd need some adapters for that to work, and it frankly doesn't seem necessary; I'll just test occasionally.

Worked fine when first purchased. Quick and easy to analyze mix. Used on two dive trips then put away for 6 months with batteries removed. Then it would not calibrate to 20.9% . Used new batteries still not working properly. I think the sensor may have died. Contacted manufacturer through their website e mail. Sarah got back to me within one day with a recommendation to fix issue. When that didn't work she immediately arranged for a replacement unit, which I received within a week. A good product but even better : Great customer service!!

Nice to check O2 on equiment.

I so wanted this meter to work since it is fairly inexpensive and comes with a nice case but I think the sensor was bad and I can't trust it. I received the meter and the batteries were dead as many of the other reviews have noted. I can't believe they haven't fixed this simple flaw yet! I put 3 fresh AAA batteries in and turned it on and calibrated as directed. The reading was 21.4% before I calibrated and 21.4% after I calibrated (should be closer to 20.9%). I had a feeling there was something wrong with the meter. I contacted Forensics technical support via email and got no response after 4 days. Fortunately I took it over to a local dive shop and tried it on a tank of nitrox with a known oxygen content of 32%. Put the meter on and waited about 20-25 seconds before the read out moved. It went up to about 26% but no further. The shop worker's meter only took about 5 seconds to register ~ 32%. I sent it back and purchased a different brand before I went diving.

vendor replaced promptly at no cost

I ordered the detector in June but didn’t use it until September. The readings I got were much different than the dive shops. When I got home I contacted Forensics customer support and they sent me a new one within a few days. The new one works fine. Forensics customer support was very helpful.

I got this device on Tuesday, fast shipping and good delivery time. My only concern is when I opened the box, the device looks like was used for plenty of times before gets into my hand! There are tears and scratches on screen, and I was sure it was not brand new! These O2 analyzers internally works with Galvanic chips , and even if the device sits on shelves, it wears the sensor off! So I don’t know how long it would work! Also, the manufacturer did not place the sticker regarding the date the Galvanic chip was manufactured and placed into the device! Because of these reasons, I will return the device!

Great product and great company. Their ability to produce highly accurate gas detectors for affordable prices has helped my clients multiple times. They also offer a calibration service for most of their products (if not all. I assume they will do any of them.)

En tiempo y forma, solo le pondría una esponja para protegerlo y una guía rápida de uso, pero esta muy practico

Perfect analyzer for the price point really happy with it. Works extremely well for dive cylinders. N.B Fedex deliver this item to UK from Greece and charge you almost £46 ontop of the purchase price, which Amazon do not tell you so be aware of this fact when ordering

Excellent analyseur pour le prix, je recherchais un analyseur capable de lire au-dessus de 25% et celui-ci le fait.