Armstrong Locksmith is one of the few Nashville commercial locksmiths certified to install, maintain and repair E-Plex locks. E-Plex locks use a card, keypad or both to open the lock. We can be a simple single user, programmable lock found on hotel doors to complex, access control locks, monitored remotely, managing access for multiple users and programmed schedules. For assistance with and E-Plex lock Call or text us at 615-615-8000 or email us at [email protected]