EAS Anti-Theft Library EM Magnetic Security Strips 165mm

The EAS Anti-Theft Library EM Magnetic Security Strips 165mm (Model: EAS-EM-BOOK-STRIP) are high-coercivity electromagnetic (EM) security strips designed for library book protection, university archival preservation, legal journals, and rare manuscript security. Engineered for compatibility with 3M Tattle-Tape, Dialoc ID, and Checkpoint EM library security gate systems, these ultra-thin 165 mm long magnetic strips are inserted deep into the spine gutter of books, providing covert, tamper-resistant anti-theft protection.

1. Cobalt-Based Amorphous Alloy Resonator Physics

Operating on Electromagnetic (EM 10 Hz to 20 kHz) surveillance technology, the strip is constructed from an ultra-thin high-purity cobalt-based amorphous magnetic alloy ribbon paired with a deactivatable magnetic bias strip. When an active strip passes between the low-frequency electromagnetic fields of library exit detection pedestals, it generates sharp, distinctive harmonic frequencies that trigger instant alarm sirens with 99%+ detection accuracy and virtually zero false alarms.

2. Infinite Magnetization / Demagnetization Lifespan

At the library circulation desk, staff activate or deactivate the strip in under 1 second by swiping the book spine across a Book Deactivator / Reactivator Unit. The strip can be magnetized and demagnetized infinitely without signal degradation, making it ideal for books circulated thousands of times over decades. Backed by an acid-free, non-staining archival permanent adhesive, it preserves fragile paper pages from chemical discoloration.