FLIR's F-Series of fixed-site thermal security cameras let security professionals detect intruders and other threats to their facility's security clearly in total darkness and in bad weather. Fully enabled for control and operation over digital and analog networks alike, F-Series imagers are available with 160 ½ 120, 320 ½ 240, and high-resolution 640 ½ 480 uncooled detector formats, providing up to four times the image clarity and longer threat detection range performance of lower resolution cameras. The F-Series uses passive thermal imaging technology that lets operators see clearly in total darkness without costly investment in additional sources of illumination and related infrastructure.