Transponder key

Appears in the issue.

SimonsVoss Technologies, Inc., of Franklin, Wisconsin, has introduced a transponder that replaces a mechanical key. A user pushes the button to unlock multiple doors and control a wide range of equipment as authorized by the system administrator. If the unit is lost or stolen it can be easily disabled and a replacement issued without changing the lock. Its wireless communication operates at a range from 1 inch to 30 inches. Encryption prevents the unit from working with unauthorized systems, and authorization can be automatically restricted to specific dates. The internal battery has an expected life of one million operations or 10 years.

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