Monday, March 20, 2006

Proximity Readers

Proximity readers are among the simplest access control systems to install and use. The principle is simple: they are encoded to read and respond to electronic signals from access cards, and only to cards that are specifically authorized. Unlike the swipe cards used at ATM readers at groceries and other stores, most proximity cards don’t require contact with the reader or a Personal Identification Number (PIN) to work. Proximity is enough, with sensitivity limited to as little as an inch or two or expanded to over a foot – especially useful for handicap-access doors, parking garages, etc.




Full article can be read HERE.

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