Which AM Security Tag Should You Choose?
AM Pencil Tag 45mm vs 51mm vs 63mm: Which AM Security Tag Should You Choose?
1/17/20263 min read
AM Pencil Tag 45mm vs 51mm vs 63mm: How Tag Size Affects Detection Range and Antenna Distance
When installing an AM EAS anti-theft system, many retailers focus on the antenna itself while overlooking one of the most important factors affecting performance—the security tag.
The size of an AM Pencil Tag plays a significant role in determining how effectively a product can be detected by the EAS system. As antenna distances increase, choosing the correct tag becomes essential to maintain reliable theft detection and prevent inventory losses.
In this guide, we'll compare the AM Pencil Tag 45mm, 51mm, and 63mm models and explain how each performs with different antenna distances.
What is an AM Pencil Tag?
An AM Pencil Tag is a reusable anti-theft tag designed for use with 58kHz Acousto Magnetic (AM) EAS systems. These tags are commonly attached to garments, fashion accessories, footwear, and other retail products to prevent shoplifting.
When an item carrying an active AM tag passes through the security antennas without being removed at the checkout counter, the system triggers an alarm.
AM Pencil Tags are popular because they offer:
High detection rates
Reusable design
Strong theft protection
Low false alarm rates
Compatibility with all AM 58kHz systems
Why Does Tag Size Matter?
Every AM tag contains an internal resonator that communicates with the antenna system.
As the size of the tag increases, the resonator becomes larger and produces a stronger response within the detection field. This allows the system to detect the tag more reliably, especially when antennas are positioned further apart.
Larger tags generally provide:
Greater detection distance
Better performance at wide exits
Improved alarm consistency
Enhanced retail security
AM Pencil Tag 45mm
The 45mm AM Pencil Tag is the most compact option and is commonly used in clothing stores, boutiques, and fashion retailers.
It offers reliable performance for standard entrance widths and provides an economical solution for everyday retail security.
Detection Range:
4–5 Feet
Recommended For:
Boutique stores
Garment shops
Children's clothing stores
Standard retail entrances
Benefits:
Compact design
Lightweight construction
Easy to attach
Cost-effective theft protection
AM Pencil Tag 51mm
The 51mm AM Pencil Tag provides a stronger detection response than the 45mm version.
Retailers often choose this tag when they require slightly wider antenna spacing without upgrading to larger hard tags.
Detection Range:
5–6 Feet
Recommended For:
Fashion stores
Department stores
Footwear retailers
Medium-width entrances
Benefits:
Improved detection performance
Better coverage across wider exits
Reliable alarm activation
Durable and reusable
AM Pencil Tag 63mm
The 63mm AM Pencil Tag is designed for retailers requiring maximum performance from their AM EAS system.
Its larger resonator provides the strongest signal response among pencil tags, making it ideal for stores with wider entrances and greater security requirements.
Detection Range:
Up to 7 Feet
Recommended For:
Large retail stores
Shopping malls
Department stores
Hypermarkets
High-value merchandise
Benefits:
Highest detection performance
Ideal for wider antenna gaps
Superior alarm reliability
Enhanced theft prevention
AM Pencil Tag Detection Range Comparison
Tag SizeDetection Range45mm AM Pencil Tag4–5 Feet51mm AM Pencil Tag5–6 Feet63mm AM Pencil TagUp to 7 Feet
Actual detection ranges may vary depending on antenna model, installation quality, environmental conditions, and tag orientation.Which AM Pencil Tag Should You Choose?
Choosing the right tag depends on your store's entrance width and security requirements.
Choose 45mm If:
You have a standard retail entrance and want an economical anti-theft solution.
Choose 51mm If:
You need slightly wider antenna spacing and improved detection performance.
Choose 63mm If:
You have a large entrance, high customer traffic, or require maximum detection coverage.
Conclusion
The effectiveness of an AM EAS security system depends on both the antenna and the tag being used. While all AM Pencil Tags provide reliable retail theft protection, larger tags generally deliver better performance when antenna distances increase.
The 45mm tag is ideal for standard installations, the 51mm tag offers enhanced coverage, and the 63mm tag provides the strongest detection performance for wide retail entrances.
By selecting the correct AM Pencil Tag, retailers can improve detection rates, reduce shoplifting, and maximize the return on their retail security investment.
For high-quality AM Pencil Tags, AM Hard Tags, Super Tags, and complete AM EAS Systems, contact EAS Systems India today.
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