High-Temperature Thermocouples

High-Temperature Thermocouples Meet Reliability and High Performance Standards

Watlow's high-temperature thermocouple offerings include noble metal and exotic metal sheaths. Noble metal thermocouples tolerate higher temperatures and provide greater accuracy than base metal thermocouples. Choose from ASTM E230 Types B, R or S depending on temperature and tolerance requirements. Thermocouples can be ordered as bare elements, elements with insulators or as assemblies. A typical assembly includes a head, alumina insulators and a protection tube.

Features & Benefits

Thermocouple conductors are ideal for all temperature applications

Wide selection of sheath materials meets specific application temperatures

Insulation materials meet demanding application temperatures

Grounded and ungrounded junctions meet electrical configurations

Testing and certification services are ideal for demanding applications


Optical Res Accuracy Temperature Outside Diameter
up to 3100 up to 1700 1.6 to 6.4 in. In 0.063 to 0.25 mm Cm

Related Documentation

  • Brochures

    Thermal Solutions for Foodservice Equipment

  • Training and Education

    Thermocouple Temperature vs. EMF Tables

  • Catalogs

    Sensor Catalog (Section) - Resistance Temperature Sensors

    Sensor & Controller Catalog

  • Specification Sheets

    Thermocouples for General Applications

    Base Metal Thermocouple

    Connector Systems


    Mineral Insulated Thermocouple

    Miniature Thermocouple Connectors

    Noble Metal

    Sensors for High Temperature Heat Treating

    SERIES 5750

    SERIES 5900

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Quality Certificates

ISO 90012008 Certificate - Richmond

ISOIEC 17025 2005 Certificate - Sensors - 1-31-19 Richmond