Type-K, 6 in, 8 ga, (Skutt Part Number 1515).
For use in ALL kiln mounted, Skutt KilnMaster controller series kilns (KM Kilns).
NOTE: If you currently have a type-k solid metal or sheathed thermocouple, this is Skutt's most reliable and newer style replacement. However, it may require slight kiln modification, drilling slightly larger 1/2" hole through the kiln brick to install.
Not to be confused with the Skutt Type S thermocouple which is very thin in comparison.