With the cooling tube extension for the SOPAT VI probes, the temperature range can be extended from 100 °C to 450 °C. With the help of the additional rinsing function, deposits such as air, water, or other fluids on the probe window can easily be removed. This extension of the SOPAT probes is possible under pressures of up to 4 bar and is compatible with the SOPAT probes Ma, Pl, Sc, Pa.