Method and device for electronically protecting items against theft

摘要

The invention relates to a method and device for electronically protecting items against theft. Said device consists of a security element which is integrated into the item and is excited within a given security area by an interrogation field of a transmitting device to generate a characteristic signal, wherein a receiver device triggers an alarm upon recognition of the characteristic signal. The invention has the aim of providing a method and a device enabling protection of the supply of items made from varying materials. This is done by providing a shape-retaining security element and/or a shape-retaining security element enclosed by shape-retaining casing, and by embedding or integrating said device in the item during manufacturing.