Hand-held metal detector (HHMD) is a portable electronic device used to locate metallic objects on a person or within bags. Commonly employed in security checks at airports, schools, and public events, it ensures safety by detecting concealed weapons, contraband, or other metal items.
How It Works
The device operates on electromagnetic induction principles. When switched on, it generates a magnetic field. If metal is present, the field disturbs, triggering an audible or visual alarm. Sensitivity settings allow adjustments to ignore small, harmless objects like coins.
Key Features
Lightweight & Portable: Easy to carry and maneuver.
Adjustable Sensitivity: Reduces false alarms.
Battery-Powered: Typically uses rechargeable or disposable batteries.
Durable Design: Often water-resistant for outdoor use.
Applications
Security: Used by law enforcement and event organizers.
Industrial: Detects metal contaminants in food or textiles.
Recreational: Helps locate lost items or construction nails.
Advantages
Non-invasive, quick scans.
Cost-effective compared to larger scanners.
In summary, hand-held metal detectors are vital tools for safety and efficiency across various fields.
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Malaysia
