Ulubione

Acousto-magnetic (AM) gates are anti-theft solutions operating at a frequency of 58 kHz, which offer the widest detection zone of any EAS technology. Nova’s range includes including anti-theft gates designed for wide entrances to clothes shops, shopping centres and large retail outlets.

What are AM gates for shops, and how do they work?

AM gates (English:. Acousto-Magnetic) in shops is a component of the EAS system that detects active tags and acousto-magnetic clips attached to goods. They operate using 58 kHz technology, triggering an alarm when an undeactivated security tag passes through the detection zone.

The AM acousto-magnetic system works as follows:

  • The gates emit a 58 kHz field within the detection zone,
  • AM tags and clips respond to this field by entering a state of resonance,
  • When an active tag passes through the gate, it is detected by the antennas,
  • the system analyses the signal and detects a safety device that has not been deactivated,
  • Upon detection, an audible and/or visual alarm is triggered.

What are the advantages of acousto-magnetic gates?

EAS acousto-magnetic gates offer one of the highest levels of effectiveness in the retail security sector. Their key advantages are:

  • the largest detection area, making them ideal for large retail spaces,
  • resistance to metal components in the environment,
  • very high detection rate for clips and labels,
  • rapid response and a low rate of false alarms,
  • small and discreet AM labels,
  • the ability to adjust the alarm volume,
  • variation in appearance.

In which shops are EAS acousto-magnetic gates suitable?

EAS acousto-magnetic gates are mainly used in areas with heavy footfall and a high risk of loss.

The most common uses are:

  • large shops (including clothes shops, electronics shops and beauty shops),
  • shopping centres and arcades,
  • supermarkets and hypermarkets,
  • DIY stores.

Thanks to their wide passage and high detection efficiency, they are ideal for securing main entrances.

AM vs RF gates – the differences. Which solution should you choose?

Shop owners often have to choose between AM and RF security gates. The differences between them mainly concern detection technology and resistance to interference.

Feature

AM (acousto-magnetic) gates

RF gates

Frequency

58 kHz

8,2 MHz

Detection zone

Larger

Smaller

Resistance to metal

High

Average

Application

Large shops, shopping centres

General retail (from food to clothing, (such as electronics or cosmetics)

AM gates for shops are the better choice if the owner’s priorities are comprehensive protection of the entrance and minimising false alarms.

Why choose Nova acousto-magnetic gates?

Nova supplies AM gates to shops, drawing on many years of experience (over 8,000 installations) and full device integration, offering solutions tailored to the customer’s needs.

Each project is carried out on a case-by-case basis – from analysing the shop entrance and footfall to selecting the technology (AM, EM or RF), and on to configuring the detection zones and integrating the system with the till systems. As a result, the system operates reliably in all retail environments, minimising the risk of false alarms and enhancing the effectiveness of stock protection.

Nova also supplies a complete EAS system, including:

FAQ

Acou-magnetic gates for wide passageways – what does this mean?

This means that the antennas can be spaced further apart than with other technologies, making it possible to secure wide entrances to shopping centres and large shops.

What materials are AM gates made from?

AM gates are most commonly made from aluminium, plastics synthetic materials (e.g. Plexiglas) and steel, ensuring their durability and aesthetic appeal.

Do AM gates work with clips and labels at the same time?

Yes, the AM acousto-magnetic system is compatible with both security clips and AM tags.