Short-Range Ground Surveillance Radar
The Ranger® R1 is a ground-based perimeter surveillance and tracking radar that accurately 
detects personnel and vehicles at a range of up to 700 m. It scans a full 360° every second, covering up to 1.5 square km (0.6 square miles). Additional units — such as a mid-range Ranger® R2 — can be networked in an overlapping array to protect larger areas, stitching together an impassable radar area outside and inside your perimeter.