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Whether you need temperature sensors for high temperature or low temperature situations, there’s a type of thermocouple that’s best suited for your application. In this post, we break down the differences between Type T thermocouples and other temperature sensor options.


Not all thermocouples are used for blazing hot environments. Type T thermocouples specialize in extremely low temperatures, making them a natural fit for food monitoring and environmental applications and a favorite for freezer and cryogenic situations.

Type T thermocouples are made with a combination of copper and constantan and are best suited for temperatures between -454 and 700 degrees Fahrenheit

Another advantage of Type T thermocouples is that they feature high corrosion resistance that can limit errors caused by temperature gradients. These temperature sensors are used in in oxidizing atmospheres, although protection tubes are recommended for use in those environments. 

Type T thermocouples also benefit from being non-magnetic, so they can be safely used in environments featuring strong magnetic fields that fall within their suggested temperature range.

Reminder: Type T Require Careful Calibration

Of course, there are usually a few drawbacks with every type of thermocouple. For Type T’s, they require careful calibration before use, as they have small output signals and can be affected by noise. Also, with their given temperature range, they are prone to damage if you push closer to 700 degrees Fahrenheit.


Whether you need quality Type T thermocouples for you low-temperature applications or some other type of temperature sensor solution, it helps to work with a trusted thermocouple supplier. 

GeoCorp is a premium thermocouple manufacturer that has built a reputation around doing whatever it takes to deliver a quality thermocouple solution for our customers. Contact us today to talk to a GeoCorp expert about your thermocouple needs, or build your own Type T Thermocouple with our Thermocouple Builder.

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