PTFE twin twisted pair for extending or making simple thermocouples Single pair of PTFE insulated conductors twisted together Thermocouple types K, T, J & N. Good mechanical strength and flexibility, resistant to oils, acids and other adverse fluids Suitable for steam & pressure applications, autoclaves, sterilizers etc. 10, 25, 50 & 100 metre reel lengths Tolerance Class 1 for optimum accuracy