ʻO nā thermocouple tungsten-rhenium ka thermocouple kiʻekiʻe loa no ke ana wela. He mea kūpono ia no ka vacuum, H2 a me ka inert gas protection environment, a hiki ke piʻi ka mahana hana kiʻekiʻe i 2300℃. ʻElua mau calibration, C(WRe5-WRe26) a me D (WRe3-WRe25), me ka pololei o 1.0% a i ʻole 0.5%