UPLIFT PROTECTION
FOR LIBRARIES

Rhombus EM EAS System

The TAGIT™ Premium Light Rhombus EM System (PrmL-R) sets a new standard in library security, combining exceptional detection performance with a clean, modern design. Engineered specifically for prestige libraries, learning centers, and sensitive institutional environments, the Rhombus system ensures reliable protection of books, media, and confidential materials.The 3D EM EAS System by TAGIT is a cost-efficient, high-performance anti-theft solution designed for environments where functionality and value matter more than aesthetics.

Equipped with dual-coil rhombus geometry and advanced electromagnetic detection, the system achieves highly accurate tag detection across all three orientations, with a strong emphasis on vertical alignment - even in electrically noisy environments. It supports variable aisle widths depending on setup and is ideal for use in educational or public libraries.

Designed for intuitive use, the system features built-in audible and visual alarms, allowing full customization of alarm durations and tag compatibility. Its internal control unit offers tuning to meet each unique operational needs. Manufactured using durable materials, the system is well-suited for locations where external housing or will be added. It’s the go-to option for customers who prioritize performance and savings over design.

Single-width doorways (up to 90 cm) are efficiently secured with a two-pedestal setup, while wider or double-door entrances can be protected with multi-pedestal configurations.

As with all TAGIT™ systems, the Rhombus antenna’s core electronics and structural components are built to the highest standards, ensuring minimal maintenance and long-term operational reliability.

  • Superior 3D Tag Detection © – Reliable performance across all tag orientations
  • Electromagnetic Tag Detection on Metal – Accurate performance with foil or metallic substrates
  • Compatible with All EM Peripheral Devices – Ensures plug-and-play integration with legacy systems
  • Advanced Digital Signal Processing (DSP) – For high-precision electromagnetic tag recognition
  • Alarm Can Trigger Surveillance Camera – Enables automated video capture upon security breach

Technical Specifications – Rhombus EM EAS System

  • Dimensions
    Height: 151 cm / 59,4 in
    Width: 80 cm / 31,5 in
    Base Thickness: 5,5 cm / 2,2 in
    Power Requirements
    100–240 V AC; 50/60 Hz; grounded
    Power Consumtion
    max. 130VA per antenna
    TX Frequency
    Approx. 200 Hz
    Weight Master Antenna
    33.25 kg
    Alarm System
    – Visual and audio alarm signals (LED & buzzer)
    – Programmable light and sound alarm sequences
    – Optional NO/NC relay output for external integrations
    – Adjustable alarm duration and volume
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TAGIT supports retailers, libraries, government agencies, and industrial organizations with EM security systems, EAS labels, and AntiLeak® document protection technologies.
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Frequently Asked Questions About EM Security Systems

Can TAGIT EM systems detect items concealed in aluminium foil or booster bags?

Yes. TAGIT 3D EM sysaYes. TAGIT 3D EM systems can detect EM labels concealed inside aluminium foil and booster bags, while also delivering reliable detection performance on metal, curved, and small-format products.tems detect EM labels even through aluminium foil and booster bags, and perform reliably on metal, curved, and small-format products.

Are TAGIT EM labels compatible with other EM systems?

Yes. TAGIT EM labels are compatible with most standard electromagnetic (EM) EAS systems, including mixed and legacy installations.
Exception: Compatibility with certain Meto systems cannot be guaranteed when using standard EM labels.

For environments that combine Meto and non-Meto infrastructures, TAGIT offers dual-technology EM labels. These labels support both detection formats and can be applied either during manufacturing or at the distribution center (DC), ensuring reliable operation across different EM system platforms.

Can TAGIT 3D EM systems detect labels on metal objects?

Yes. TAGIT 3D EM systems can detect EM labels applied to metal and metal-containing objects, where conventional electromagnetic systems may experience reduced performance.

Detection performance can be affected if the metal object is strongly magnetized, as this may interfere with the electromagnetic response of the label and reduce detection reliability.

For most retail, library, and industrial applications, TAGIT's patented 3D EM technology provides reliable detection on a wide range of metal-containing products and packaging.

What type of EM label should I use for different products?

The optimal EM label depends primarily on the size, shape, material, and packaging of the product.

Larger products typically benefit from longer EM labels, which provide a stronger signal and increased detection range.

Smaller products often require compact, high-performance labels such as TAGIT Twin Labels or Power Labels, which deliver reliable detection while fitting into limited application areas.

In general, longer labels offer increased detection performance, while high-performance label formats are designed to improve results on challenging surfaces, complex packaging, metal-containing products, or space-constrained applications.

TAGIT offers more than 300 EM label formats and can recommend the most suitable solution based on your product and security requirements.

What ROI can I expect from a TAGIT 3D EM system?

TAGIT 3D EM systems enable protection of a wider range of high-shrink and difficult-to-protect products compared to many alternative technologies, helping retailers reduce overall shrinkage and improve return on investment.

Actual ROI depends on factors such as store size, product mix, theft levels, and existing security coverage. In most cases, ROI is driven by measurable reductions in theft-related losses and improved protection of high-value merchandise.

Request our ROI Calculator to estimate potential savings for your store or facility, or contact us for a tailored assessment.

Are there products that cannot be protected?

Only items with strong magnetic properties may interfere with electromagnetic detection and therefore cannot always be protected reliably using EM labels.

Apart from this limitation, TAGIT 3D EM technology is highly versatile and compatible with a broad range of retail, library, document security, and institutional applications. It can be used to protect products and assets that are often difficult to secure with other EAS technologies.

What causes environmental noise interference?

Environmental noise interference in electromagnetic (EM) EAS systems is caused by nearby equipment or infrastructure that generates or distorts electromagnetic fields, potentially affecting detection stability and signal performance.

Common sources include:
- Air conditioning systems and industrial electrical equipment
- Computer monitors, servers, and IT infrastructure
- High-frequency or specialized lighting systems
- Other EM EAS systems installed nearby (including certain legacy EM installations)

This type of interference is a known characteristic of all electromagnetic security systems and is not specific to TAGIT solutions.

TAGIT's patented 3D EM technology is designed to maintain stable detection performance in environments with typical electromagnetic noise, supporting reliable operation in retail, library, government, and institutional applications.

How can I improve detection in high-noise environments?

If environmental noise cannot be reduced physically, detection performance can be optimized through system configuration and tuning methods:

Master–Master configurations to enhance system robustness in demanding installations
Sensor-based tuning and calibration for fine adjustment of detection sensitivity and field stability

These approaches help maintain reliable EM EAS detection performance even in environments with persistent electromagnetic interference or complex installation conditions.

What is the maximum aisle width TAGIT EM systems support?

If environmental noise cannot be reduced physically, detection performance can often be improved through system configuration, calibration, and advanced tuning methods.

Common approaches include:
- Master–Master configurations to increase system robustness in demanding installation environments
- Sensor-based tuning and calibration to optimize detection sensitivity, field stability, and overall system performance

These methods help maintain reliable EM EAS detection even in environments with persistent electromagnetic interference, nearby electrical equipment, or complex installation conditions.

TAGIT's patented 3D EM technology is specifically designed to support stable operation in challenging retail, library, and institutional environments.

How can I further maximize detection and aisle width?

Detection range and aisle width can be further improved through the right combination of label selection, system configuration, and system tuning.

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