Security display with central control system

摘要

A security system for protecting a plurality of items of merchandise on display in a retail environment. Each of the items is connected to a sensor which is removably mounted in a display module and connected thereto by a power cord. A single alarm module located in an inaccessible location is connected to each of the display modules by another power cord. A power cord connects each of the display modules to a source of electricity for supplying electric power to the sensor through the display module and then to the displayed item for maintaining the charge on a battery of the displayed item. The alarm unit contains an internal power source for controlling the alarm circuitry. A plunger switch and LED may be contained in the sensor.