AerOpak mineral-insulated thermocouple cables are available with various sheath materials, including stainless steel, Hastelloy, and Inconel, that are suitable for use in harsh, corrosive, and other hazardous environments at temperatures to 2,600°F. The cables are comprised of thermocouple or conductor wires that are insulated with compacted ceramic powder and then drawn and encased in a seamless metallic sheath. They come in sizes ranging from 0.020 in. to 0.750 in. o.d. and can be supplied in lengths of 1,000 ft or more.