ADT Security Services has designed a new antitheft system to protect stores with small exits (between three and six feet). The Sensormatic Ultra-Max System 3020L is easy to install and is mounted directly on a store’s entry or exit door. It offers a confined detection area, so tagged items can be displayed closer to the door without triggering an alarm. It can also be used on interior doors such as employee exits. The system comes as a single-door unit for 3-foot openings or a double-door unit for 6-foot openings.