Oxygen Detector by Forensics | 2 Year Battery Life | 3 Year Sensor | USA NIST Calibration | Drop-Proof & Water-Proof | Rubber Soft-Touch | 0-30% O2 |

Works great for my project. I am using it to tell me when a electronic module is full of Argon because It beeps to let me know all the oxygen is gone and I am ready to seal the package

Purchased this a year ago for our NMR room. We have a large tank of liquid nitrogen that often tends to vent in a closed room. Therefore, it is helpful to know before entering the room what the conditions are. I have to say, for a small room, it's not super sensitive, even if you wear it on your person. After a year, the battery needed replacement and continual replacement afterwards. After replacing the battery and recalibration, it wouldn't read the correct O2 percentage for the room. I like the overall design. To set up/calibrate/maintain is not easy. I think this would work better if you are working in smaller areas, however, this wasn't sensitive and responsive enough for what we needed.

I've been using these for years in our winery, which is very humid and relatively harsh conditions overall for an oxygen meter. Gassing fermentations to 0% Oxygen using Nitrogen and Argon - the air going through the unit is humid and has some alcohol, so it is hard on the unit. Any time the units have had issues, the customer service has been excellent and they have replaced units even after warranties expired.

Very good design, great monitor for our green house air.

I am using this oxygen detector for my own personal in-home use. However, my experience with it has led to the rating, primarily due to challenges encountered during setup and perceived limitations in its performance. For me setting up the Oxygen detector proved to a bit of a challenge, and it became apparent that careful attention to the instructions is crucial. I would advise read and follow instructions diligently to ensure proper functionality. The device features as being drop proof and waterproof, which is commendable for ensuring longevity. I say it offers durability features and a reasonable measurement range, the challenge in the setup is perceived inconsistency in performance for myself.