Platinum rhodium thermocouple, oo sidoo kale loo yaqaan thermocouple birta qaaliga ah, sida dareenka cabbirka heerkulka waxaa badanaa loo isticmaalaa gudbiyaha heerkulka, nidaamiyaha iyo qalabka bandhiga, iwm., si loo sameeyo nidaamka xakamaynta habka, oo loo isticmaalo in si toos ah loo cabbiro ama loo xakameeyo heerkulka dareeraha, uumiga iyo gaaska dhexdhexaad ah iyo dusha adag ee dhexda 0-1800C ee hababka wax soo saarka kala duwan.