A*Sign is a unique smart parking sign. It uses the Sigfox Internet of Things standard for connecting hardware devices. There is a GPS-tracker in every A*Sign module for the location-based and real-time management of the signs. An NFC-chip inside the A*Sign module ensures a swift connection with employee smartphones. When moved, the sign emits an audible alarm signal for theft protection. Meanwhile the GPS-tracker is activated for immediate localisation an retrieval of the signs. The A*Sign has a digital E-Ink display; a low-power, high-clarity solution suited for every light and weather environment. A*Sign has an autonomy of 2 years.