Quick access RFID technology RFID Options: Card, key fob and self-adhesive label included Quick, spring-loaded drop down door Whisper Quiet keypad with programmable electronic lock and high security backup key Alarm-U tamper and motion sensitive alarm The Fortress Quick Access Safe with Electronic Lock and RFID features fast access when you need it most. Enabled with the Alarm-U feature that sensors detects motion or tampering for unauthorized entry, the mounting holes are pre-drilled so you can effectively secure your unit. All Fortress pistol and personal safes include a backup key.