IU-20 Code Door Lock, Electronic Door Knob with Keypad and Same Key, Auto Loc...

Usage: ‎2 Traditional keys( KW type ), 1 Master code,50 User codes, code 4-15 digit in length, waterproof IP65 (Can be used outdoors, can work when it rains),Energy saving, 4 AA batteries (batteries not included) can be used for more than 2 years,USB type-c backup,Backlit Keypad,password protection(random digits before or after the correct access code), Auto-lock (4 second), Passage Mode(Easy passage mode [√5√master code√] for easy back to auto-lock. ).

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