Qubit Systems’ S104 Differential O2 Analyzer DOX is the world’s only patented differential oxygen analyzer with a resolution of ± 1 ppm O2 against a background of air.

The S147 Rapid Response O2/CO2 Analyzer combines both a laser diode O2 sensor and an infrared CO2 detector.

Qubit Systems Q-S102 O2 Analyzer is configured for measuring oxygen concentration in a flow through gas exchange systems in 0-25% or 0-100% range with 0.21% accuracy.