Labfacility leaf thermocouple stainless steel shim labfacility xe 3421 001 a k type leaf thermocouple mounted on a stainless steel shim the element junction is grounded at the tip for fast response and the thermocouple is rated to 350degc the sensor is terminated with 2m of glass fibre insulated 702mm lead with a stainless steel overbraid labfacility xe 3421 001 type k stainless steel shim leaf thermocouple