Product selling points: password unlocking, key opening, APP unlocking, card swiping opening characteristic: 1: Easy installation, in-situ replacement, in-situ replacement of the original door lock, simple disassembly and assembly can instantly become intelligent. Even a screwdriver can be easily installed 2: The design of the key password is fashionable and beautiful, and supports virtual password. You can freely enter garbled characters before and after the correct password, as long as the correct password continues in the middle to unlock 3: APP - After connecting the door lock Bluetooth in a one-stop management system, use the Graffiti APP to easily view door lock message reminders, unlock logs, Bluetooth unlocking, etc
