Description:
A security scanner is an inspection device used to detect prohibited or dangerous items such as weapons, explosives, or contraband on people, in luggage, or within packages. It is widely used in high-security areas such as airports, government buildings, hotels, and event venues to enhance safety and control access. Security scanners come in different types, including walk-through body scanners, handheld scanners, and baggage scanners, each designed to identify hidden objects without the need for physical contact.

Operation:
The operation of a security scanner depends on its type, but most commonly it uses technologies such as X-rays, electromagnetic waves, or millimeter-wave signals to scan objects or individuals. For example, in baggage scanners, items pass through a tunnel where X-rays penetrate the contents and create an image on a monitor for the operator to analyze. In body scanners, harmless waves detect objects concealed under clothing by reflecting signals back to the system. If a suspicious item is detected, the machine alerts the operator through visual or audio signals, allowing for further inspection or action.