Heavy duty rigid probe thermocouple labfacility faa gsj 45 150 20c4 t heavy duty rigid probe type j 60 to 350c temperature range cable terminal 2m lead rugged design grounded junction for fast response 2m glass fibre insulated stainless steel braided lead with 702 wire style fa labfacility faa gsj 45 150 20c4 t heavy duty rigid probe j