Kj-type screw thermocouple ndi sensa yomwe imayesa kutentha.Zimakhala ndi mitundu iwiri yosiyana yachitsulo, yolumikizidwa pamodzi pamapeto amodzi.Pamene mphambano yazitsulo ziwirizo yatenthedwa kapena itakhazikika, magetsi amapangidwa omwe amatha kudalira kutentha.Thermocouple alloys amagwiritsidwa ntchito ngati mawaya.