Simply insert the device in the front interface of the digital tachograph and it begins the data download. The driver card can also be downloaded separately using the card reader integrated in the key. You can then transfer the data to your PC via a USB port and analyze it with the software provided. The integrated SD card reader even allows you to create back-up copies of the data (additional SD card required). The data can be read directly on site on the 2.2-inch, color TFT touch display. Self-explanatory images guide you through the menu. The DLK Pro Download Key covers all the requirements of fleet managers, owner-operators and supervisory authorities.