Labfacility type k and j industrial thermocouples with terminal head labfacility xe 3249 001 a type k thermocouple with a 100mm long probe that is protected by a 310 stainless steel sheath the probe is terminated in a weatherproof aluminium terminal head with a screw fit lid the weatherproof terminal head and stainless steel sheath make this thermocouple ideal for use in harsh environments and external situations labfacility xe 3249 001 k thermocouple 6 x 100mm ss310 sheath terminal head