Tungsten-rhenium thermocouples ndiye thermocouples apamwamba kwambiri pakuyezera kutentha. Ndikoyenera makamaka kwa vacuum, H2 ndi malo otetezera mpweya wa inert, ndipo kutentha kwapamwamba kwambiri kumatha kufika 2300.℃. Pali ma calibrations awiri, C(WRe5-WRe26) ndi D(WRe3-WRe25), ndi kulondola kwa 1.0% kapena 0.5%