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 combined 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 displays in hard-to-reach places. The volumetric flow can also be easily measured with the app: simply input the duct cross-section, and the app calculates it completely automatically.

The app offers you further practical possibilities: 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. Furthermore, it quickly generates a trend display of the measurement data and sends the measurement logs as a PDF or Excel file.

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