The compact flue gas probe can be connected to the flue gas analyzer quickly and easily. Thanks to its bayonet lock, the flue gas path, draught path and temperature probe can be connected to the measuring instrument via a single probe coupling. On the probe handle there is a particle filter, which protects the gas paths of the measuring instrument from contamination and which can also be replaced easily without any tools. The flue gas probe measures temperatures of up to 500 °C and its immersion depth of 300 mm also makes it suitable for carrying out measurements on large combustion plants.