Durex IndustriesDurex Industries manufactures an extensive line of thermocouples for pollution control and process applications. These sensors can be protected from hostile environments with thermowells or protection tubes constructed of stainless steel, nickel alloys, ceramic or silicon carbide. Various terminal housings can be used to provide compliance with all NEMA standards. These thermocouples are manufactured to meet all ANSI and ASTM specifications. Head-mounted transmitters are available for 4-20 mA signal conversion and temperature tolerances are standard or special limits-of-error.