Magnetometers (Metal Detector)

About this video

Magnetometers, commonly referred to as metal detectors, are one of the most widely recognized physical security technologies in use today. Deployed at airports, courthouses, corporate campuses, and other secured facilities, these devices screen individuals as they pass through a portal-style frame that detects the presence of metallic objects. When metal is identified, the individual is typically directed to remove those items so they can be processed through a separate scanner for further inspection. For security professionals, magnetometers represent a foundational layer of physical access control. Understanding their deployment, operational workflow, and limitations is critical when evaluating the physical security posture of an organization or facility. They are frequently paired with other screening technologies and security personnel to create a layered approach to entry point protection.

What you'll learn

Identify magnetometers as a physical security control used to detect metal objects in access-controlled environments.

What's covered

Magnetometers

Common Locations
- Airports
- Buildings
Purpose
- Security Use
- Detects Metal Objects
How It Works
- Walk-Through Design
- Metal Objects Removed
- Separate Object Scanner

Key terms

Magnetometer: A physical security control used to detect metal objects on a person, commonly deployed at access-controlled entry points such as airports and secure buildings.
Access Control: A security mechanism that restricts access to resources based on policies, roles, or identity.

Topics

Magnetometers Metal Detection Physical Security Access Control Physical Security Controls Facility Security

About TechKnowSurge

TechKnowSurge builds IT and cybersecurity professionals through hands-on, concept-first training built around real understanding — not memorization. Free interactive tools, structured programs, and 25+ years of real-world experience, all in one place.

Explore free tools and programs →