In simple terms, a Keyless Entry System provides access control security by admitting entrance with a card reader, keypad, fingerprint scan, or other biometric access control
. Most schools use either keypads or card readers, and these systems can be used in conjunction with master key systems, as well.
Easy to use software, as part of the system, can be used to track who enters the building or gate, and when. Permissions can be granted or removed at any time, from anywhere—no need to change commercial locks when keys are lost, or an employee departs. This can be a large cost saving advantage over the course of a year.