EM label deactivator

An EM label deactivator (Electromagnetic) or Security label deactivator is a device used to neutralize the magnetic properties of an EM security tag or label attached to merchandise, typically at the point of sale. Library EM deactivation unit prevents the tag from triggering an alarm when the item passes through the EM security gates at the store or library exit.

Here’s how an EM label deactivator generally works:

1. Magnetic Field Generation: The deactivator produces a specific type of magnetic field.
2. Tag Interaction: When an active EM tag passes over or near the deactivator, this magnetic field interacts with the magnetic components within the tag.
3. Neutralization (Deactivation): The deactivator’s magnetic field alters the magnetic state of the tag, effectively deactivating it so it will no longer be detected by the security gates.

Some EM deactivators can also reactivate EM tags, which is useful in library settings when borrowed books are returned.

Types of EM Label Deactivators:

EM label deactivators come in various forms, including:

• Countertop Pad Deactivators: These are flat pads placed on the checkout counter. Staff swipe or place the item with the EM label over the pad to deactivate it. Some also function as reactivators.
• Handheld Deactivators: Portable devices that can be waved over the EM label to deactivate it. These might be used for larger or awkwardly shaped items.
• Integrated Deactivators: Some barcode scanners or POS systems have a deactivator built into their base for a more streamlined checkout process.
• Deactivator/Reactivator Units: Specifically designed for libraries, these units can both deactivate tags when items are borrowed and reactivate them when returned. They often have visual and auditory feedback to confirm the status change.

The specific type of deactivator used will depend on the retail or library environment and the volume of items being processed.

How Book tag deactivator Works:

• EM labels (also called strips or tags) are magnetostrictive materials embedded inside books or media.
• These labels are magnetically active when protecting the item.
• When a book is checked out, the deactivator demagnetizes the strip, making it invisible to the EM detection gates.
• When the item is returned, the strip is reactivated using an EM reactivator.

Types of EM Deactivators:

1. Manual Deactivators:
   • Handheld magnets or demagnetizing wands.
   • Often used in small libraries or backups.
2. Automatic Deactivators:
   • Integrated into self-checkout stations or staff circulation desks.
   • Usually include a scanner and deactivation pad in one.

Key Features to Look For:

• Compatibility with existing EM strips.
• Fast deactivation response time.
• Compact design for integration into desks/kiosks.
• Option for combined deactivation/reactivation units.
• Safety certification for magnetic emissions.

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