Pyrometer na juriya nau'in na'ura ne na auna zafin jiki wanda ke amfani da juriya na kayan abu don tantance zafin jiki. Juriya na wasu kayan aiki, irin su platinum, suna canzawa ta hanyar da za a iya gani tare da zafin jiki, don haka ta hanyar auna wannan juriya, ana iya ƙididdige yawan zafin jiki na kayan. Ana amfani da pyrometers na juriya sau da yawa a aikace-aikace masu zafi inda wasu nau'ikan ma'aunin zafi da sanyio bazai dace ba, kamar a cikin tanderu, kilns, da injuna.