The ULTRAMAT/OXYMAT 6 gas analyzer is a practical combination of two analyzers, ULTRAMAT 6 and OXYMAT 6, in a single enclosure.

The ULTRAMAT 6 measurement channel functions according to the NDIR dual-beam differential mode process and highly selectively measures gases whose absorption bands are in the infrared wavelength range between 2 and 9 µm, for example CO, CO₂, NO, SO₂, NH₃, H₂O as well as CH₄ and other hydrocarbons.

The OXYMAT 6 measurement channel is based on the paramagnetic alternating pressure method and is used to measure oxygen in gases.