Single unit license for AXIS Perimeter Defender PTZ Autotracking. Together with a fixed camera running AXIS Perimeter defender this enable automatic control of a PTZ camera to zoom in on and follow detected objects. Please check the supported countries (https://www.axis.com/files/pods/axis_perimeter_defender_ptz_autotracking_supported_countries.pdf) before ordering. Visit www.axis.com for supported products and application download.