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Hand-Held Scanners for Personnel
(Chapter 3   Metal Detection, Continued)

Working with the vendor

If a school is required to go out on bid for one or more hand-held metal detectors, it is recommended that the contract require the following optimal features:

  • A variable pitch of alarms that provides more information to the operator using it, i.e., a softer squeal for an innocuous item, like a zipper, and a louder squeal for a bigger, more suspicious item.
  • A detector paddle or zone that is at least 10 inches long.
  • A signal that indicates the battery is beginning to run low, as opposed to an abrupt termination of operation.

 



Research Report:   The Appropriate and Effective Use of Security Technologies in U.S. Schools