EAS is an abbreviation of Electronic Article Surveillance system. It is also called as anti-theft system or loss prevention system.
Electronic article surveillance (EAS) is a technological method for preventing shoplifting from retail stores or pilferage of books from libraries.
Special tags are fixed to merchandise or books. These tags are removed or deactivated by the clerks when the item is properly bought or checked out.
At the exits of the store, a detection system sounds an alarm or otherwise alerts the staff when it senses active tags.
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For high-value goods that are to be manipulated by the patrons, wired alarm clips may be used instead of tags.
Typically this identification is used to alert someone of the unauthorized removal of items from a store, library, or data center.
EAS systems are mainly adopted by retailers and libraries for inventory control purpose. EAS systems help clients a lot in deterring potential pilferage, improving consumers’ and patrons’ experience and satisfaction, increasing retail sales and patrons’ access motivation.
- EAS systems are mainly adopted by retailers and libraries for inventory control purpose.
- EAS systems help clients a lot in deterring potential pilferage, improving consumers’ and patrons’ experience and satisfaction, increasing retail sales and patrons’ access motivation.
Besides the application of EAS systems for retailers and libraries, EAS systems are also used by some clients for special purposes – protecting inventory in factories, items in showrooms, valuable articles or documents in offices and institutions, expensive eyeglasses in 3D cinemas, etc..
EAS systems have been even used for the protection of new-born infants and madmen in hospitals.
In more than 40 years history of EAS systems, different principles were developed and tried. Three of them are recognized so far as the most feasible technologies – Electromagnetic (EM), Radio Frequency (RF) and Acousto-Magnetic (AM) technologies.
Different technologies have different advantages and weaknesses. Based on these differences, different technologies are selected by different clients for the protection of different items in different environments with different purposes.
Electronic Magnetic Systems
There are several major types of electronic article surveillance systems:
- Magnetic, also known as magneto-harmonic
- Acousto-magnetic, also known as magnetostrictive
- Radio frequency
- Video surveillance systems(to some extent)