Types of Thermocouples

Thermocouples measure temperature by measuring a voltage generated by the difference between two dissimilar electrical conductors that form an electrical junction.  The voltage is generated as a result of the Seebeck effect, and is measurable to be interpreted into a temperature.

Thermocouples are:

Interchangeable, utilizing standard connectors
Measure a wide range of temperatures
Self-powered: no electricity or batteries required
Limited in accuracy
Different types of thermocouples utilize different metals, as different types are suited for different applications and temperature ranges.

International Color Codes and Standards

Download our Reference document "International Color Codes and Standards for Thermocouple and Extension Grade Cable."