100% Mechanical & Keyless: There is no need to charge or install batteries because it is entirely mechanical and keyless. A password can easily access a keyless entry door lock with a handle. However, because it is entirely mechanical, it is extremely difficult to pry open, providing you with a safer living environment.

Applicable Doors: Because of the flexible unlocking direction, it works with both left and right handed doors. Keypad deadbolt locks are appropriate for balcony sliding doors, wrought iron doors, courtyard doors, glass doors, and wooden doors with a thickness of 1.38 inches to 2.56 inches (35mm-65mm). Accessories can be shortened to match the thickness of the door. Before purchase, please validate that this lock is compatible with your sliding door.

Easy to Set Up & DIY Installation: The codes are simple to set and alter. Except for the C key (no repeats), combinations can be 4-7 digits long and can be used in any order. The addition of 14 push buttons significantly improves the security of mechanical door locks. Passwords are easily entered using granular buttons with superb touch sensation.

More Durable & Waterproof: The stainless steel digital door lock is constructed of stainless steel, which has a 5 to 15-fold anti-corrosion surface treatment performance compared to other materials. The keypad deadbolt is extra tough, waterproof, sun-proof, anti-rust, and anti-theft.

Preserves Your Door's Beauty: There is no need for large-area drilling to protect the beauty of the door. There are two methods for installing the lock keeper: surface (no need to embed the lock plate in the door) and mortice. And the installed hole is only 10 mm in diameter. The product comes with comprehensive instructions. Please read it carefully before proceeding with the installation; it will be simple and quick.