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Measuring airspeed - thermal anemometer in use

Thermal anemometer

Airspeed is a value which may be of importance in many areas. The focus here is above all on values in a ventilation duct, but it may also make sense to carry out an airspeed measurement inside rooms. The use of an anemometer is helpful here. The anemometer is also referred to as a wind speed meter. However, it is not just a case of using it to measure wind speed, it can also record the volume flow. Many anemometers therefore have an integrated flow meter. The air flow velocity and the volume flow inside rooms have an influence on the indoor air quality. Regular measurement is all the more important, because influencing factors are involved here which are in most cases impossible to detect at first sight.

timed mean value calculation

combination of temperature, flow and volume flow measurement

hold functions

Measuring wind speed – the influence of air flows on indoor air quality

Outlet measurement
Duct measurement
Duct measurement

Measuring wind speed – the influence of air flows on indoor air quality

A thermal anemometer has the following advantages:
  • wind measurement indoors as well

  • volume flow measurement possible

  • measurement of air temperature in some cases

  • analysis and image documentation in some cases

vane anemometer

The vane anemometer is very commonly used in this area. This instrument has a probe head which can be employed to measure the airspeed and volume flow. Temperatures of up to 140°C can occur with a model that is suitable for the measurement of high temperatures and the anemometer will continue to carry out accurate measurements.

Some of the instruments which you can purchase from Testo have a permanently installed probe for flow measurement. These instruments are for instance used to enable a function test to be performed on ventilation and air conditioning systems. Flow velocities develop in a ventilation duct. Checking these flow velocities is an important factor in terms of testing whether there may possibly be a negative influence on the indoor air quality. Measurement of the flow velocity using a thermal anemometer also enables calculation of the volume flow.

Wind measurement is for instance carried out with an anemometer inside rooms when there are uncertainties about the air flows and air temperature. The reasons for this may be structural defects or also leaky windows. In some cases, the flows are so small that they cannot always be identified immediately. However, they can be quickly detected by using an instrument as sensitive as the anemometer.

Thermo anemometer with smartphone connection

thermo anemometer with smartphone operation

Nowadays, it may be particularly helpful to use an anemometer which also has a smartphone connection. This makes analysis and reception of the values considerably easier. You can order a thermo anemometer with smartphone operation from Testo. The model is able to measure volume flows and temperatures, as well as airspeed. The measuring values themselves are then sent to an App. This enables you to obtain the values directly and analyze them, as well as comparing them to other measurements.

The advantages of a thermo anemometer with smartphone connection at a glance

Forwarding of measurement data to the App, direct analysis of the data in the App, easy handling

Buying a wind meter from Testo

If you want to buy a wind speed meter

If you want to buy a wind speed meter, you will find a selection of different models at Testo. Classic anemometers for the measurement of air flows are also included, along with pure flow meters or combination instruments, which can also be used to measure temperatures.

Wind speed meter – various versions

Wind measurement can be carried out using a variety of instruments. The volume flow hood is also one of these. However, this instrument is designed primarily to enable readout of the volume flow. It was developed for use at ceiling outlets and can carry out precise measurements.