Keypad Door Knob with Lock and Key Round Electronic Entry Door Knob Lock for 35‑55MM Thickness Door Apartment Garage

Premium Metal Materials: Made of excellent aluminum alloy and stainless steel, the door knob lock is and , suitable for 35 to 55mm wooden and room doors. Multiple Password Options: With a password length of 6 to 8 digits, the door knob lock can store up to 45 sets of passwords, including 3 for administrators and 42 for regular users. Anti Peep Function: Featuring a dummy password option, the keypad door knob allows users to input random numbers before and after the correct password, unlocking with a maximum limit of 16 digits. Item Type: Keypad Door Knob Lock Material: Aluminum Alloy, Stainless Steel Weight: Approx. 678.00gCelsius23.92oz Capacity: 45 Sets (3 Sets for Administrators, 42 Sets for Regular Users) Password Length: 6 to 8 Digits Virtual Password Guard: Dummy Password Anti Snooping, Can Be Entered Before Or After The Correct Password At Any Time, The Maximum Limit of 16 Digits Application: Standard Wooden Doors, Doors, Narrow Doors, Eco Friendly Doors Power Supply: 1 x 3.7V 400mAh Ternary Lithium Battery (Built in Battery Included) Unlocking : Password or Key Door Thickness Compatibility: 35 to 55mmCelsius1.38 to 2.17in Round Knob Size: Approx. 80x57mmCelsius3.15x2.24in