hand held and walk through Metal Detectors for Personnel Screening
Walk-through metal detectors are categorized as single-zone or multiple-zone.
Multiple-zone technology is replacing single-zone technology, which has been in use for more than 30 years. In multiple-zone metal detectors, the archway is divided into horizontal zones. The sensitivity of each zone can be adjusted, increasing the ability of the metal detector to differentiate between weapons and metal items that do not pose a danger, such as keys and coins. The horizontal zones can be further divided into vertical sectors. This makes it possible to identify the approximate location of a weapon or other contraband. There are several design trends for walk-through metal detectors. One is the integration of walk-through metal detectors as a component in security systems. This integration allows operators to remotely monitor metal detectors and lock access doors if an alarm is triggered. Another design trend is the inclusion of a digital camera feature that captures images of the individuals that walk through the metal detector. This feature can aid law enforcement by assisting in the identification of people who flee a security checkpoint
Walk-through metal detectors can be designed for either indoor or outdoor use.
Outdoor models are weatherproof and are often used at temporary venues, such as concerts or sporting events. Indoor models are typically installed at a fixed location. They can, however, be moved if needed. Handheld metal detectors, also known as security wands, are often used at checkpoints in conjunction with walk-through metal detectors; the handheld model provides focused screening when the alarm in the walk-through metal detector has been triggered. Although handheld metal detectors are more commonly used as a secondary means of screening, they can be used as a primary screening device. Handheld metal detectors are weatherproof, easy to transport, and less expensive than walk-through metal detectors. Walk-through models range in price from $2,000 to over $10,000. Handheld models range in price from $100 to over $400.
