ELSEC (Elbit Security Systems Ltd, formerly Ortek Ltd) is a wholly-owned subsidiary of Elbit Systems specializing in homeland-security solutions: long, medium and short-range day/night surveillance sensors, surveillance vehicles with EO sensors and radars, small UAS, electronic and fiber-optic intrusion-detection fences, and security C4I centers. The Sderot facility employs over 200 people, half of them engineers, and was established in 1983.