Labfacility k type mineral insulated thermocouples plain pot seal and tail labfacility xe 3121 001 a oslash60 x 150mm long k type thermocouple that has a flexible mineral insulated probe protected by a 310 stainless steel sheath the device has a plain pot seal and is terminated by 1m of 702mm pfa insulated flat pair cable the thermocouple has a single element construction with the junction being insulated from the sheath to offer protection against spurious electrical signals the hig