This allows tagged items purchased or rented to legally exit the store without setting off an alarm.ĮM EAS systems are very affordable, making them suitable for various retail and rental applications. The store uses an electromagnetic (EM) EAS system to prevent theft from occurringĮM tags can be reactivated at any time by exposing them to a strong magnetic field, which stops them from vibrating and harmonizing with other magnetic fields. This disturbance triggers an alarm to alert employees that tagged merchandise is leaving the store without authorization. These tags are normally deactivated, but when they enter the low-frequency electromagnetic field created by pedestals at the store entrances and exits, their magnetic properties change, and they vibrate, emitting a harmonic sound.

Electro-Magnetic (EM) EAS Systems for Theft PreventionĮlectro-Magnetic (EM) EAS systems use tags that contain metal strips or strips of magnetic material. There are several types of EAS systems available, including Electro-Magnetic, Acousto-Magnetic, and RFID. Related Articles: Basics of Electronic Article Surveillance (EAS) Systems Types of EAS Systems to Prevent Theft Some stores also have cameras to monitor the gates and catch thieves in the act. If tagged items move into the read field without deactivation, the readers will pick up the disturbance and raise an audible alarm to alert employees. Once received in the store, all items are tagged with an EAS security tag, which must be deactivated at checkout to allow customers to purchase the goods legally.ĮAS-enabled stores have gate readers at the entry and exit points that detect untagged or active EAS transponders, generating an electromagnetic field around the area. There are several types of EAS tags available, including pins, labels, wire loops, and adhesive tabs. EAS tags can be attached to various items, including clothes, books, electronics, and other merchandise. 4 About EAS vs RFID FAQs Understanding Electronic Article Surveillance (EAS) in Retail StoresĮlectronic Article Surveillance (EAS) is a common theft-prevention technology used in retail stores and libraries to deter shoplifting.

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