Not only is our S108 Absolute O2 Analyzer the most flexible and accurate oxygen analyzer on the market, it is also one of the most affordable. It uses a fuel cell sensor that operates at ambient temperature unlike power hungry zirconium sensors that require an on-board furnace. Measurements of pO2 are precise across the entire range from 0% to 100%. For animal and human respirometry, the S108 can be used with our S155 CO2 Analyzer to measure respiratory quotient. For respirometry in smaller or less active organisms, it may be configured in a stop flow or closed gas exchange system. Calibration is easy. All you need is dry ambient air (use a N2 zero gas for most stringent measurements). Linearity is maintained across the entire dynamic range.

Features include:

0.01% resolution on digital display ?much better in software

Switchable ranges of 0-25% and 0-100% O2 over 0-5 V analog out

Integrated pressure sensor corrects %O2 output as pressure changes

Output in units of %O2 or kPa O2

Pressure shown on display (kPa)

Optional battery pack for field use

Temperature compensated O2 sensor

Weatherproof case

The S108 Oxygen Analyzer is one of the least expensive oxygen analyzers on the market. The fuel cell sensor is easily replaced by the user when necessary (approx. every 2 to 3 years depending