This probe is based on a metric 8x1 fine pitch thread such as used on some Rotax engines. It can be used on manifolds that do not have provision for this thread by drilling a 5mm hole for the probe and welding a suitable 8x1 fine pitch nut to the manifold to retain the probe.
This probe is available in two lengths (length of probe as measured from tip to start of thread) to suit small and large diameter exhaust pipes: 19 and 26mm.
Stainless steel bolt and probe. K-Type thermocouple, stainless steel braided cable, 1 meter length. Solid conductors.
Consult engine manufacturer for correct position. Typical positions are: