The Israeli Unattended Ground Sensor (According to the Israel’s new website i-HLS, the two systems are designed to provide the Ultimate Gap Filler ( ) for border protection and of targets of interest in complex terrain.The UGF comprises a miniature tactical radar (Elta Systems ) specialist Optronics recently unveiled two unattended sensors – the Mini Unattended Ground Imager (MUGI) and enhanced version of the Chameleon 2 – Urban Persistent Covert Surveillance System. ) integrated with the MUGI, enabling persistent, long endurance coverage of gaps in a perimeter or border line covered by other means of surveillance. The radar continuously scans a sector of 90⁰, delivering , with an automatic detection range of up to 2 km. The MUGI system can be triggered by the radar, or by unattended ground sensors (acoustic, seismic, etc.) The system is controlled remotely via radio link, with multiple systems operated simultaneously by a single observer.