The testo 330i App is a free Android tool developed by Testo SE Co. KGaA under the category of Utilities & Tools. The app is designed to provide users with complete control of the measuring instrument via a smartphone or tablet. With an easy and intuitive menu guide in the touchscreen, the app allows users to track changes using the graphical trend view and keep the measurement values always in view during the adjustment of the system.

One of the best features of the testo 330i App is its ability to create PDF reports or export measurement values in CSV (Excel) or ZIV format. The app allows users to insert photos of the measurement site and comments into the documentation, which can be sent as an e-mail straight from the measuring location. The app has a range of approximately 20 m without obstruction via Bluetooth 4.0 LE. It is important to note that this app can only be used with the testo 330i flue gas analyzer.

Overall, the testo 330i App is a convenient tool for flue gas analysis, especially for those who require mobility and accessibility. Its user-friendly interface, combined with its reporting capabilities, make it a great addition to any user's toolkit.