When the card comes within a few feet of the reader s antenna the rfid chip transmits its data identifying the user to a security computer.
Radio frequency door locks.
Recommends that all exterior doors have a deadbolt and entry lock mounted for safety and security.
Many businesses use radio frequency identification rfid door locks.
Rf radio frequency remote door knobs and deadbolts all have a tested range of 150 feet essential info.
Proximity card door locks utilize a radio frequency technology which is represented by a miniature antennae placed inside the card keyfob or other hid human interface device that transmits a signal to the proximity reader to allow entry.
Each key card contains data encoded on a machine readable rfid chip and plays an integral part in a computerized security system.
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