Fully mechanical structure requires no batteries or charging, anti-prying and anti-theft performance stable; password modification operation simplified, left/right reversible handle design adapts different door opening directions. Equipped with multi-size spindles and matched fasteners, fits door thickness 35-65mm, applicable to courtyard gates, garden doors, garage doors, storage room doors, metal fence doors and multiple door types. Push-pull latch bolt supports direct replacement of old locks; large cover plate avoids destructive hole drilling, keeps door surface intact. Only a screwdriver is needed for self-installation, matched guide documents and installation videos assist quick assembly. Integral zinc alloy body with anti-corrosion electroplated coating delivers waterproof and rustproof performance, stable service under rain, high temperature and low temperature outdoor environments.

· Overall Size: 5.9in(H) × 5.6in(W) × 8in(D) · Weight: 3 Pounds · Main Material: Zinc Alloy · Power Mode: Pure mechanical manual operation, no battery needed · Adaptable Door Thickness: 35–65mm · Core Features: 14-digit keypad password unlock, reversible left-right handle, multi-size spindle matching, direct lock replacement, waterproof rustproof zinc alloy housing, self-installable with basic tools · Waterproof Performance: Outdoor waterproof & anti-rust coating treatment · Functional Configuration: Mechanical password keyless entry, no electronic module, physical anti-theft structure