Thermocouple ne da biyu daban-daban abubuwa na biyu karshen mai gudanarwa ta hanyar walda, samar da zagaye, kai tsaye madaidaicin zafi karshen da ake kira madaidaicin karshen, da waya karshen da ake kira tunani karshen. Lokacin da akwai bambancin zafin jiki na ma'auni da ƙarshen tunani, zafin zafi yana samarwa a cikin zagaye, wanda aka haɗa da ma'aunin nunawa, wanda ya nuna ƙimar zafin jiki daidai da ƙarfin zafi da thermocouple ya samar. Heat-lantarki halaye ne daya na yau da kullun halaye na kayan, amma kawai da thermal power da zafin jiki dangantaka curve ne mai kyau, kwanciyar hankali mai kyau, maimaitawa mai kyau, thermal power rate babban, sauki daidaitawa, kayan albarkatun wadataccen, sauki tsabtace, lalata juriya mai kyau biyu karfe jagoranci zai iya zama thermocouple yin kayan. Thermocouple aikace-aikace mafi yawa filin zafin jiki gauge.