Screw thermocouple ke sensor e lekanyang mocheso. E na le mefuta e 'meli e fapaneng ea tšepe, e kopantsoeng ka lehlakoreng le leng. Ha mateano a lirafshoa tse peli a futhumatsa kapa a pholile, ho hlahisoa motlakase o ka itšetlehang ka mocheso. Hangata li-alloys tsa thermocouple li sebelisoa e le lithapo.