ELECTRONIC ARTICLE SURVEILLANCE
Electronic article surveillance (EAS) is a technological method for preventing shoplifting from retail stores.
Special tags or labels, using radio frequency or acusto magnetic technology are fixed to merchandise and removed or deactivated by the clerks when the item is bought.
EAS systems operate from a simple principle regardless of the manufacturer or the specific type of technology used: a transmitter sends a signal at defined frequencies to a receiver. This creates a surveillance area, usually at a checkout aisle or an exit in the case of retail stores.
Upon entering the area, a tag or label with special characteristics creates a disturbance, which is detected by the receiver. The exact means by which the tag or label disrupts the signal is a distinctive part of different EAS systems:
STRUCTURE
EAS system comprises the following components :
1. Tags/ labels - sensors attached to merchandise
2. Deactivators si detachers- for deactivating tags and labels
3. Electronic gates
