Nau'in thermocouple mai nau'in K tare da keɓaɓɓen jagorar zafin jiki babban madaidaicin firikwensin da ake amfani da shi don auna zafin jiki. Yana amfani da nau'in thermocouples na nau'in K azaman abubuwan da ke da zafin zafin jiki kuma yana iya auna zafin kafofin watsa labarai daban-daban, kamar gas, ruwaye, da daskararru, ta hanyar hanyar haɗi tare da keɓaɓɓen jagorar zafin jiki.