Thermocouple ndi chipangizo choyezera kutentha chokhala ndi ma conductor awiri osiyana omwe amalumikizana pa malo amodzi kapena angapo. Zimapanga magetsi pamene kutentha kwa malo amodzi kumasiyana ndi kutentha komwe kumatchulidwa kumadera ena a dera. Ma thermocouples ndi mtundu womwe amagwiritsidwa ntchito kwambiri wa sensor ya kutentha poyeza ndi kuwongolera, komanso amatha kusintha kutentha kukhala magetsi. Ma thermocouples ogulitsa ndi otsika mtengo, osinthika, amaperekedwa ndi zolumikizira wamba, ndipo amatha kuyeza kutentha kosiyanasiyana. Mosiyana ndi njira zina zambiri zoyezera kutentha, ma thermocouple amadziyendetsa okha ndipo safuna kusangalatsa kwakunja.