MECHANICAL DIGITAL DOOR LOCKS: 2-4 digit keyless combination latch locks for multiple locations, can be installed on gates, fences, windows. Opens you up to secure digital code access protection. The smart door lock uses mechanical unlocking mode, no key, no batteries or wires required, avoiding problems such as lost keys, more convenient, safer and faster. WATERPROOF: The combination lock has an efficient waterproof surface and is perfectly suited for outdoor use, installed on your patio's gate. Each of our locks is polished with a brushed chrome finish for a smooth surface that boasts a comfortable feel and longer life. HIGH QUALITY ALLOY LOCK CASING: The overall lock casing is made of high quality alloy material with a special cold rolled finish for a smooth and durable surface that can effectively resist violent damage. Better protection for your property and personal safety. EASY TO INSTALL: Easy to install with just a screwdriver, no new screw holes or hard wiring required. Even if you are a novice, you will be able to install this smart door lock in no time at all. STYLISH AND SECURE: With its silver body and smooth finish, every detail is carefully polished for simplicity and beauty, so you don't have to worry about it looking out of place in your home. Also the 2-4 digit code setting, which can have many different code combinations, is 100% mechanical and suitable for both internal and external use. Designed for light commercial and domestic use with high levels of security., Weight: 1.7857443222 pounds, Manufacturer: Hakeeta