This TÜV-tested modular flue gas probe with a 7" long probe shaft features a quick-change click system on the handle, which enables easy replacement of the probe shaft. The thermocouple is NiCr-Ni, which is integrated in the probe shaft, enabling temperature measurements up to 932 °F. The flue gas path and temperature channel can be conveniently connected to the measuring instrument via a practical bayonet lock. In addition, a dirt filter protects the instrument and its sensors from contamination.7" modular flue gas probe, including dirt filter, cone for attachment, NiCr-Ni thermocouple with Tmax = 932 °F, and 4.9' hose