Types of Thermocouples

A wide variety of thermocouple types exist, each reading 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
  • Durable
  • Limited in accuracy

Different types of thermocouples utilize different metals, as different types are suited for different applications and temperature ranges.

Thermocouple Types - International Color Codes and Standards

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