With a 12" sheath length, 0.25" sheath diameter, and 12" extension, the type J spring-loaded ind thermocouple probe also have a 316 stainless steel sheath, installed with current housing, and spring-loaded to be bottomed out into a thermowell. The probes are welded and sealed for direct insertion with ½" NPT insertion threads and has a temperature range of 32 to 1400°F.

With a 12" sheath length, 0.25" sheath diameter, and 12" extension, the type J spring-loaded ind thermocouple probe also have a 316 stainless steel sheath, installed with current housing, and spring-loaded to be bottomed out into a thermowell. The probes are welded and sealed for direct insertion with ½" NPT insertion threads and has a temperature range of 32 to 1400°F.