La description

*Intelligent Auto-Locking design with card memory function.
*One Card Solution: *3.*6 MHz platform.
*Adopt RFID Mifare encryption technology that raises security.
*2 unlocking methods: Card & override key.
*Card memory remains after battery replacement.
*3 Emergency override keys in case of emergency.
*Stand-alone and wireless and uses only 4 Alkaline batteries.
*Battery low alert: beeping when battery is running low.
*Metallic exterior that gives a more delicate appearance.