2nd Generation Mechanical Combination Lock: This keyless entry door lock features a fully mechanical design that is resistant to tampering and does not require charging or battery installation. With simple installation and operation, it provides strong anti-theft security. The second generation allows for easier password changes, and the adjustable left/right handles offer added flexibility.

Universal Compatibility with Various Doors: This keyless entry door lock comes with multiple sets of screws and square shafts, making it compatible with doors ranging in thickness from 1.4 to 2.5 inches (35-65 mm). It fits a wide variety of door types, including entry doors, garden doors, garage doors, sheds, wrought iron, aluminum, and fencing doors.

Durable Zinc Alloy Material: The latch bolt is made from zinc alloy. This keyless mechanical combination door lock features a corrosion-resistant electroplated coating for enhanced water and rust resistance. It withstands all weather conditions, ensuring that your home remains secure with long-lasting performance.

Easy Door Lock Replacement: With adjustable left/right handles, this mechanical door lock works for both left and right doors. The adjustable hole spacing (2.3 in/60 mm and 2.7 in/70 mm) and reinforced wider pads eliminate the need for large holes, preserving the aesthetics of your door while providing superior security.

Automatic Locking & Hold Open Function: This mechanical combination door lock automatically engages when the door is closed, so you won't have to worry about forgetting to lock it. The hold open function is ideal for areas with frequent access, providing convenient entry and exit.