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Air temperature measuring devices

Air temperature measurement is one of the most frequent applications in the broad spectrum of temperature measurement.

Measure air temperature accurately with Testo's measuring technology

Because people as well as goods and products sometimes react very sensitively to temperature values that are too high or too low.

Examples of the places where an air temperature measuring device is used therefore include residential and office buildings, as well as storage areas for temperature-sensitive goods.

A Testo air temperature measuring device offers you the following

  • Measure air temperature with a comprehensive selection of probes for every requirement

  • Particularly robust construction with intuitive operation

  • Calibration and service from one source – with reliable Testo brand quality.

Products for air temperature measurement

Applications for your new air temperature meter

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Probes for air temperature measurement

Air probes are particularly suitable for measuring the air temperature, for instance in refrigerated counters, chest freezers or air conditioning systems (air output temperature), in the ventilation field (air input/output) or in the meteorological field.

The air temperature sensor of these probes is exposed and therefore particularly readily accessible to the air flow. You achieve an optimum result with your air temperature meter when you move the probe through the air at 2 – 3 m/s.

Physical backgrounds for air temperature

Temperature is the physical quantity most often measured after time. The temperature of a body is a measure for the energy of the subordinate movement of particles this body is made of. When thermal energy is supplied to this body, its particle speed increases. In turn, this leads to the temperature of the body rising. If energy is taken from a body, then the particle speed slows down and the temperature falls.

The air temperature measuring instrument with Internet connection

Measuring the air temperature with your smartphone

Testo Smart Probes are compact professional measuring instruments for the most important day-to-day measuring tasks. They do not have a display and are operated entirely via the testo Smart App on your smartphone. The testo 915i model (thermometer operated by smartphone) is ideal for recording ambient temperatures.

Other advantages:

  • Rapid detection of temperature change via graphical progression display

  • Measuring range -50 to +400°C

  • Measurement data analyzed and sent via testo Smart App

You will find just what you need here.

testo Smart App

One App for all applications

The testo Smart App guides you quickly and easily through measurements on refrigeration, air conditioning and heating systems.

Now new:

PRO measuring programs for increasing the efficiency of your applications

Find out more


Compatible with all Bluetooth-enabled Testo measuring instruments


Direct report dispatch by e-mail


All measurement values at a glance


Intuitive measurement menus


Free download, free use


PRO measuring programs