Accurate detection of trace levels of moisture has been a challenge to the process world owing to the fact that high concentrations of water are present in the atmosphere; approximately 1% by volume in room air. Teledyne Analytical Instruments is familiar with this challenge, having successfully developed one of the broadest lines of trace ppb / ppm O2 analyzers commercially available. In developing our trace O2 line, we have had to contend with the fact that 209,000 ppm of O2 is present in the atmosphere – ready to jeopardize the analysis of typically less than 1 ppm of O2. Teledyne is utilizing 50 years of expertise in detecting trace oxygen to produce a complimentary line of trace moisture analyzers – Series 8800.