Feature available to Store Members   SAMSUNG EZON Digital Lock Model: SHS-1320 Item condition: New    Digital Wave back-lighting  - with On-off method with back lighting numbers are hidden until touched with your palm. Electrostatic Discharge (ESD) prevention - Uses a circuit technology that can withstand high voltage eletrostatic shocks for enhanced security. Double-locking(Do not disturb mode) - Ensures that the lock cannot be released from outside when this feature is activated. Manual lock and open  - Adjust a manual knob on the indoor unit to open and lock the door. Emergency external battery terminal.  KS and KPS certified  - Complies with quality and safety standard tests. The door can be opened with a RF card  - The door can be opened with a transit RF card. Up to 20 cards may be registered. The door can also be opened with a password  - Once the user\'s password is registered, the door can be opened without a key by entering the registered password. The door does not have to be locked manually  - Using the automatic locking function, the door is automatically locked when it closes, eliminating the need to lock it manually. Double locking function adds security  - The double locking function adds security by preventing the door from being opened from outside at night or at times when extra security is needed. Pranks played by children and juveniles can be prevented  - When an unregistered card is used, or when an invalid password is entered more than 3 time consecutively, an alarm sound is generated and power to the lock is automatically cut off for one minute. Fire-monitoring function helps occupants escape in case of fire  - When the inside temperate rises to a certain level due to fire, an alarm is automatically generated and the door is opened. Specification  Key Type: RF Card(13.56MHz RF chip/A Type) & PIN User Capacity(Maximum): 20 Cards / 1 PIN combination Password combination: 5~12 Digits number combination Applicable door depth: 40~60(mm) Material: Zn, Al, ABS plastic, Tempered Glass Humidity: 20% ~ 80% Power: DC 6V(Alkaline AA Battery 4pcs) Battery lifetime: 12 months(average of 10 uses per day) Package size: 208x260x85(mm:WxHxD) English version of User manual  Mirror1: Download SHS-1320_English_manual.pdf Mirror2: Download SHS-1320_English_manual.pdf