Lockey® Digital Systems, Inc. now offers the E-Digital Electronic Deadbolt Lock. The E-Digital will replace the existing deadbolt. It is keypad-operated -- no keys necessary. This lock has an auto-locking function. An auto latch bolt locking detection prevents incomplete door locking. Up to 6 user codes for access and a single 1-time user code capability. LED illumination helps ease of operation in the dark. This weatherproof lock has a one-year electrical warranty. Program and change codes with the touch of a button. Information: www.lockeyusa.com.