The gaze forward is followed by the gaze upward. The True Presence was developed as the first true presence detector. It reliably reports whether a person is in the room or not. For the first time, this also enables secure absence detection. With this information, lighting can be controlled reliably, without delays, avoiding unnecessary electricity costs. Its knowledge of actual presence or absence also offers many other applications that are of great value for building management. This sets a new standard in modern building automation.