... material usually include SS321, SS304, SS316L, SS310 INCONEL 600 Mineral insulated cable for thermocouple use:Measure range: K, E, J, T, N ... Core: Simplex, Duplex, TriplexSample1 MI thermocouple with J extension wireMI cable for RTD use:Conductor: Ni,CuOuter dia.: 2~8mm Sheath ... Core: Simplex, Duplex, TriplexSample 2 MI RTD with connector Mineral Insulated Cable