Thermocouple Extension Wire

Increased Stocking Levels Improve Availability

Since 1914, SERV-RITE thermocouple wire and thermocouple extension wire have been recognized for premium performance and reliability. All stock and custom wire is manufactured in Watlow's plant where materials, manufacturing equipment and quality controls are carefully selected to ensure superior uniformity. Watlow offers popular wires as well as custom manufactured wire using alloys and insulation types to meet specific application demands.In an effort to better serve our customers Watlow recently adjusted inventory and increased stocking levels of its high quality SERV-RITE thermocouple and extension wire, which has greatly improved availability of standard constructions. All wire is manufactured under rigid quality controls following ISO 9001 standards. In addition, all electromotive force (EMF) versus temperature calibration procedures follow one or more of the following standards: ASTM E 207, ASTM E 220 and AMS 2750. All testing has NIST traceability. Unless otherwise specified, all SERV-RITE thermocouple wire and extension wire are supplied to meet standard tolerances of ASTM E 230.

Features & Benefits


Type E, J, K, S and T thermocouple wire fit virtually all applications

Compensation extension wire permits fine tuning of temperature measuring circuits

Wide selection of insulation types meets temperature, chemical, moisture and abrasion resistance objectives

Color coding complies with United States, United Kingdom, German, Japanese and IEC standards

Stock RTD lead wire meets virtually all industrial RTD applications

Related Documentation


  • Brochures

    SERV-RITE Wire Brochure

    Rapid Ship Sensors, Stock Wire and Connectors

    Thermal Solutions for Foodservice Equipment

  • Catalogs

    Sensor Catalog (Section) - SERV-RITE Wire

    Sensor & Controller Catalog

  • Specification Sheets

    SERV-RITE Wire

    Connector Systems

    Miniature Thermocouple Connectors

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Quality Certificates

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

ISOTS 16949 2009

ISO 90012008 Certificate - Richmond

ISO 14001 2004 Certificate - Sensors