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I'm building an O2 analyzer for our continuous blend compressor
system, and found out about the Cermatec CAG-250E sensor from
the industrial group. We have been using the CAG-13 with our
Mini-Ox, which we get from their medical group.

Has anybody used the CAG-250? The specs are 900,000 O2 % hours
vs 450,000 on the CAG-13. The 250 also uses a gelled electrolite,
so it is not as sensitive to vibration. The 250 costs less ($50
vs $70) than the 13. It sounds like a good deal, twice the life
and a smaller price tag, what gives? Cermatec says that their
industrial stuff is cheaper than the medical stuff, but it is
in a different form factor (narrower and longer), and the specs
are the same (except for the longer life). Any reason why I should
not use the industrial stuff?

thanks,
Jon
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