Multicore K J T Type Thermocouples Cable Extension Wire Temperature Measurement 【Model】: Thermocouples Cable. 【Wire core material】: Type K: NiCr - NiSi; Type T: Copper - CuNi; Type J: Fe - CuNi. 【Temperature resistance of PTFE sheath】: -60℃~+300℃. 【Temperature resistance of glass fiber sheath】: -60℃~+400℃. byJuly 5, 2026