Anemometers are among the hidden champions of laboratory tools: once purchased, everyone loves them. With the Testo 417, Testo provides an anemometer that can work both standalone and in cooperation with a Bluetooth LE-based companion application.

Keeping tabs on airflow is a frequent task: if a designer needs to know whether a fan is achieving its targeted airflow rating, or if an air conditioning system for a laboratory needs to be checked. Testo is a well-established anemometer manufacturer and offers a classic vane anemometer that provides traceability and advanced insights.

4-Inch Vane for Simple Placement

A large fan dominates the top of the unit. It - shown in the figure below - needs to be brought into contact with the airflow. It will then turn and provide information about the amount of air moving.

In the data sheet, a measurement range of +59.1 to +3937 fpm is claimed. As for accuracy, Testo delivers an amazing ±1 digit ±19.7 fpm ±1.5% of mv. Finally, the Testo 417 also contains a thermometer. This is useful when inspecting air conditioning systems, as the impact of an integrated heating or cooling solution can be determined while verifying the required airflow.

Android and iOS Companion Applications

Even though the back of the Testo 417 features a large, easy-to-read display, the device can also be controlled via its Bluetooth radio. Testo provides applications for Android (see https://play.google.com/store/apps/details?id=de.testo.smartprobesappgen2) and iOS (see https://apps.apple.com/de/app/testo-smart/id1482139629).

Once a connection between the anemometer and the companion application has been established, data can be collected and exported. The system also supports the creation of advanced reports, where photos and other information can be combined into an easy-to-share PDF file. It can be sent via the sharing framework integrated into Android or iOS. This means that anemometer reports can, for example, be forwarded using an instant messenger for immediate analysis and safekeeping.

As for power, the device is supplied by three AA batteries. These are commonly available, and options such as the Panasonic BK-3MCDE/4BE can be used if a rechargeable variant is preferred for environmental or cost reduction reasons.

Various Anemometer Accessories for Optimal Work Experience

Testo backs up its 417 with a variety of accessories. First of all, the SKU 0554 0621 provides a dedicated Bluetooth printer. It is intended for mobile use and can be used to print without an external mobile printer. Furthermore, the base SKU 0563 0417 can also be ordered via the two kits 0563 1417 and 0563 2417. These add a variety of funnels which simplify integrating the anemometer into the target airflow.

Conclusion

If a laboratory currently does not have an anemometer, it must go to the top of the test equipment purchasing list. These products are helpful across a wide range of applications, from TMI repair to air supply analysis. The Testo 417 is an excellent contender thanks to its capability to perform on-site analysis and advanced tasks via its companion application.