±1 ppm oxygen resolution against air (that's 0.0001%!)

Widest dynamic range of any oxygen analyzer

Easy calibration without special calibration gases

Separate analog signals for reference and sample pO2

Analog signals for differential pO2, absolute pressure, differential pressure, sample and reference cell temperature, instrument temperature

The DOX has the greatest dynamic range of any gas analyzer on the market. In true differential mode it has ranges of ±100, ±300 and ±1000 Pa O2. Both the reference and sample oxygen sensors are monitored independently at the same time. An automated Ref - Sample feature provides measurements of any oxygen difference. By choosing the appropriate range setting, oxygen exchange can be measured with any animal. The integrated calibration system uses ambient air and there is no need for costly cal gases. Calibration is quick, accurate and perfectly linear over the entire dynamic range of the analyzer. The S104 has been featured in several publications in top journals.

We recommend Qubit's C950 gas exchange software for use with the S104 DOX. The software calculates all major respirometry and photosynthesis parameters, and corrects data for variation