It is very suitable for hotels, dormitories, apartments, short-term rentals, bathrooms, bedrooms or private rooms. It can be used to prevent strangers from entering and is a good guarantee for the safety of yourself and your property.Waterproof Mechanical Digital Door Lock Push Button Keypad Keyless Code Combination Lock SetDescription:Compared with the old mechanical lock, this mechanical code lock is a lock that can be opened without a key. It is easy to install and easy to open.Its waterproof, fireproof and moisture-proof advantages are unmatched by electronic locks. It can be used outdoors for a long time without rusting.This lock is small and exquisite, and can also be installed on some cabinet doors, requiring a door thickness of30-70mm/1.18-2.76".Features:Enough number combination: 13 password buttons combination, 13 valid password sheets with an extra one, and you can set 8191 digit combination.Wide range of applications: American standard single tongue lock body, can replace the ball lock.Suitable for doors of different materials: wooden doors, aluminum doors, metal doors, iron doors, etc. ( wooden door is recommended)Zinc alloy material, solid and durable.Garbled passwords: In other words, the code can be entered in any order, for example 1234 can be 4321 or 1342 or any order.PVD processing, low cost maintenance: high-end PVD plating, will not fade for ten yearsNo matter left or right: Left and right doors can be used, easy to installNormally open mode: This door lock has a normally open function. It is set on the rear panel (on the back side of the door): press the handle lock tongue to retract into the door. At this time, toggle the switch, and the internal structure prevents the lock tongue from springing back, that is, the normally open setting is completed. You don't need to enter a password to open the door.Installation requirements:This door lock is suitable for doo