ʻO Platinum rhodium thermocouple, i kapa ʻia hoʻi i ka thermocouple metala makamae, no ka mea, hoʻohana mau ʻia ka mea ʻike ana wela me ka transmitter wela, ka mea hoʻoponopono a me ka mea hōʻike, a me nā mea ʻē aʻe, e hana i kahi ʻōnaehana kaʻina hana, hoʻohana ʻia e ana pololei a hoʻomalu i ka mahana o ka wai, ka mahu a kinoea a me ka ʻili paʻa i loko o ka laulā o 0-1800C i nā kaʻina hana like ʻole.