New to me. Looks interesting. The O2 range is too limited to work as a Nitrox analyzer, but the CO specs look good, IF it's as good as claimed. I see it for $235 USD on one site, $149 on Ebay which makes me wonder why so much cheaper, what's wrong? As a tank tester, I'd want to turn it on, drop it in an empty ziplock bag, and fill the bag as carefully as possible then wait the required 30 seconds. Three cautions...
- You'll invariably suck in some outside air which could affect results;
- Even the best ziplock develop leaks quickly so start each day with a new one and carry a spare; and
- DO NOT crack the tank open after covering with the bag. I sent a bag and unit overboard that way once. Crack the valve to allow a slow escape, then place the bag over.
If you get one, let us know how it works.