2nd Generation Mechanical Combination Lock – Security Keyless Entry This mechanical keyless entry door lock provides secure access without the need for keys, batteries, or charging. The fully mechanical design ensures tamper resistance and reliable performance in any environment. Its upgraded secondgeneration mechanism allows you to easily change the access code when needed, offering enhanced convenience and security. Key Features and Benefits: Fully mechanical construction for dependable, battery operation Tamperresistant design eliminates electronic vulnerabilities Simple installation and smooth operation for everyday use Easy code change feature with secondgeneration upgrade Adjustable left or right handles to suit different door configurations Universal Fit for a Wide Range of Doors: This lock is designed to fit doors between 1.4 in and 2.5 in (35–65 mm) thick. It includes multiple screw sizes and square shafts for flexible installation across various door types, including: Garden gates and outdoor garden doors Garage and storage room doors Wrought iron, aluminum, and fence doors Durable and WeatherResistant Construction: Made from strength zinc alloy, the latch bolt offers durability. The electroplated coating resists corrosion, making the lock waterproof and rustproof. It is built to endure harsh weather conditions, whether in cold winters, hot summers, or rainy climates. Easy Door Replacement and Installation: Equipped with an adjustable thumb knob, this lock works with both lefthanded and righthanded doors. Installation is simplified with adjustable mounting hole distances of 2.3 in (60 mm) and 2.7 in (70 mm). The wider base plates minimize the need for extensive drilling, helping preserve the appearance of your door while improving security. Practical Use Scenarios: Secure entry for outdoor gates without relying on keys Reliable lock for garage or storage rooms exposed to varying weather conditions Durable access solution for metal fence or wrought iron doors requiring frequent use This 2nd Generation Mechanical Combination Lock offers reliable, weatherproof, and tamperresistant security for a wide variety of doors, providing peace of mind and convenience without electrical components or ongoing maintenance.