Engine exhaust and compressor thermocouples are available in a variety of configurations to satisfy many different requirements. The standard calibrations are Iron/Constantan (Type J) and Chromel/Alumel (Type K); other calibrations are available upon request. Thermocouple wires are in a ceramic material that withstands high temperature, provides high conductivity, prevents wire vibration, and minimizes oxidation. This assures long life under severe conditions.