Barben Analytical offers optical oxygen analyzers utilizing quench luminescence technology. The analyzers measure 25% O2 down to trace, 0.5 ppm O2, suitable for use in Haz. Loc. areas (FM:CID2, TUV:ATEX Zone2) and process streams including hydrocarbons, H2, H2S, Salts, Amines and CO2 without degrada