digital keypad lock ,RF Card door lock PY-810-JH

100% Brand New! Widely used for Home, Office, Apartment,   Villa etc.      Feature:   Keypad Code/Password to open the door   8 bytes of password   Combined Mode: using Mifare cards and password to open doors simultaneously   High security     RFID Card to open the door   The unique RFID card reader design provides great convenience for the elder and   young family members as well as office staff who have cards already.(It also support the   RFID keyfob)     Emergency Key to open the door   If you do not want to use the RFID Card/Remotel control(or keyfob), you can still use   the backup mechanical keys included in the package to open the lock.     Deadbolt + Anti-card Latch   It has two Latchs: One is Deadbolt Latch, the other is Anti-card Latch, with these two   Latchs, you will make your Home/Office more security.     4x AA Batteries   It works with 4x AA batteries, you do not need to worry about power off, because if the   voltage is less than 4.8v, there will be battery alarm and you still can use it 4.8v, there   will be battery alarm and you still can use it.     Technical Specification:   Power supply: 4×1.5V AA Batteries   Waiting current : ≤30μA   Working temperature for keypad: -3070   Working humidity: 10%-97%   Startup time: <1 second   Password capacity: 78   Batteries life: 10000 times (4x1.5V AA, average 1 year)   FRR (False Rejection Rate): 1%   FAR (False Acceptance Rate):0.0001%   Spare power supply: 9V   Cover Size: 242mm X 77mm