Nothing can surprise you anymore: With the testo 405i thermal anemometer featuring smartphone control from the Testo Smart Probes series, you are well-equipped for measurement tasks in ventilation ducts. Effortlessly, you can determine air velocity, temperature, and volumetric flows with the anemometer. The testo 405i is also suitable for measuring air velocity in rooms, which is practical if you want to locate drafty windows. Additionally, when used in conjunction with the testo 605i thermo-hygrometer, it can also determine cooling and heating performance.

The testo 405i hot wire anemometer combines professional measurement technology from Testo with app-based operation. This allows you to benefit from numerous additional features in your daily work. With the testo Smart App, you can conveniently read measurement values on your smartphone or tablet, eliminating the hassle of deciphering the display in hard-to-reach places. You can also easily measure volumetric flow with the app: simply input the duct cross-section intuitively, and the app calculates it automatically.

The app offers you further practical options: it can not only display measurement data but also analyze and document it. With the app, you can easily determine the temporal and point average. Moreover, it quickly creates a trend display of the measurement data and sends the measurement data logs as PDF or Excel files.

System requirements: iOS 8.3 or newer, Android 4.3 or newer, Bluetooth 4.0.