Tanya Enterprises makes FEP Thermocouple Extension Cables that offer reliable and accurate temperature signals in the most challenging settings. These FEP Thermocouple Extension Cables are made of two insulated electrical conductors insulated with fluorinated ethylene propylene (FEP) and another overall jacket, so electrical characteristics will remain consistent in detrimental enviro... https://www.fepwires.com/fep-thermocouple-extension-cable