A simple touch of a valid Access Key to the MicroLock's Read Head will allow access to any MicroLock-equipped vehicle's ignition system or to a building. When a valid Access Key is touched to the Read Head, the Read Head's flashing red LED will first turn green, then flash green to indicate access has been granted. Using a Program Key, a single Access Key can be programmed to allow access to an unlimited number of MicroLocks. If an Access Key should be lost, the MicroLock can easily be programmed to void the key. Multiple regular keys, so easy to misplace, are no longer necessary.
Key duplication is virtually impossible.
Up to eight unique keys can be stored in MicroLock's nonvolatile memory. No mechanical or moving parts that can be affected by vibration or other mechanical failures. MicroLock keys are small enough to be carried on any key ring. There are no moving parts, so the MicroLock system is nearly maintenance free. Dallas Semiconductor Corp.