www.securitymagazine.com/articles/76735-stand-alone-keypad-1
Stand-alone Keypad
August 14, 2003
Utilizing the latest developments in piezo-switch technology, Secura Key’s stand-alone access control keypads have no moving parts or buttons that can stick or wear out. Meeting tough IP68 standards for water resistance and a variety of MIL standards, the Secura Key stand-alone keypads in solid aluminum housings are virtually indestructible. Up to 200 users can be enrolled right at the keypad with no external controllers or computers.
