Electronic article surveillance

Electronic anti-theft systems (EAS)

Anti-theft electronic systems are a way to detect, signal and prevent theft in retail stores, bookstores, or office buildings. Special adhesive labels or “tags” are stuck on the merchandise to be protected. These labels are disabled or removed from products by qualified personnel after the goods have been purchased or have the right to be removed from the space to protect

In most situations, these systems contain at least 3 components:

  • Detection antennas (installed at protected area outlets);
  • Deactivator for adhesive or tag tags (usually installed in the cash register, for retail stores);
  • Adhesive labels and tags (which are stuck or attached to the products to be protected).

Types of anti-theft systems

The most common technologies in this field are:

  • Acoustic-magnetic (AM) systems – operate around the 58 kHz frequency
  • Radio Frequency (RF) systems – operate around the 8.2 MHz frequency
  • Radio Frequency Identification (RFID) – operates in the range of 860 MHz to 960 MHz
  • Electro-magnetic (EM) – operates in the range 10Hz – 1kHz

The most commonly used anti-theft electronics in retail stores are AM and RF, but RFID technology comes to a halt due to the many advantages it offers (stocks are done much faster and easier, employee performance increases, customer satisfaction is better ) and the intensive pace of development in recent years, which translates into lower costs.