Quote: (Originally Posted by
jradomski)
The most accurate (when properly calibrated) analyzer I have used is the Alpha one.. its +/- .25% worse case and highly repeatable.. This accuracy was stated by a testing lab in the UK (where the product is made). It uses a city tech sensor-D02 I believe (not the same as the OMS one), but for the increased accuracy you pay with a slow response time (which some people are not willing to wait).. The cell is rated at 30 sec full scale and it has a typical lifespan of 4-5 years in the meter (2 year warranty).
The OMS cell is slightly slower than the Teledyne cells and has a longer expected life..
Not a fair comparison, but I regularily use far more sensitive, accurate and long lived O2 analyzers.
Like the Orbispher 3660 with an impressive measurement range from low ppm to high % O2 on a single point cal every odd year or so. Of course a quick look on the price tag indicates this is not exactly a sportsdivers tool...
Or the paramagnetic Servomex O2-analyser we have by our compressor.
This thing basically lasts forever.