The RIEGL VUX-1 is a very lightweight and compact laser scanner, meeting the challenges of emerging survey solutions by UAS and ultra-light aircraft, both in measurement performance as in system integration. With regard to specific restrictions and flight characteristics of UAS, the RIEGL VUX-1 is designed to be mounted in any orientation and even under limited weight and space conditions. Modest in power consumption, the instrument requires only a single power supply. The entire data set of an acquisition campaign is stored onto an internal 360 GByte SSD and/or provided as real-time line scan data via the integrated LAN-TCP/IP interface.