How to choose a temperature sensor

Many systems need the ability to sense temperature. Some have multiple internal sensors to ensure the electronics run within safe limits. Others need to sense temperature at a distance. The result is a wide variety of temperature sensors, each of which has a particular set of advantages and drawbacks. Here is our guide to the many different types of temperature sensor available, how they work, and how their features match up with different applications. Use the links below to jump to a specific section.

  • Temperature sensor applications
  • Types of temperature sensor
    • Contact-based sensors
      • Thermocouple
      • Resistence temperature detector
      • Thermistor
      • Semiconductor temperature sensor
    • Non-contact sensors
      • Thermopile
      • Infrared imager
  • Choosing a temperature sensor
    • Contact-based measurement options
      • Thermocouple
      • RTD
      • Thermistor
      • Semiconductor temperature sensor
    • Non-contact measurement
      • Thermopile
      • Infrared imager
  • Summary