Whenever you download dive entries from a dive logging device, SurfaceInterval captures certain information about that device. The Device Info menu is where you will go to view that information. The info menu is a hierarchal menu which lists all of the logging devices from which you have downloaded dives. Depending upon the device type, you will see either the Sensus Pro or the Sensus Ultra info window. Naturally, the menu will be empty if you have yet to download any dives.