The adjustable cylinder from Aqara is customised for the Smart Lock U200. You can adjust the cylinder length to the door thickness, making it suitable for installation on different doors. The combination of the Smart Lock U200 with the Aqara adjustable cylinder offers you a better user experience. Perfect compatibility: The cylinder is specially tailored to the Aqara Smart Lock U200 and significantly improves your experience. It supports various smart home platforms, including Apple Home, Google Home, Alexa, SmartThings and Aqara Home. Enjoy the convenience of multiple unlocking methods such as Apple Home Keys, fingerprint, password, NFC and more. Thanks to its flexible design, the cylinder can be easily adapted to all standard cylinder locks Adjustable inner and outer cylinder lengths (from 30 mm to 65 mm and 30 mm to 60 mm respectively) ensure compatibility with different door thicknesses, making it the ideal choice for any home. Installation of the cylinder is simple and straightforward. The package includes all the necessary tools and components such as the cylinder adapter, a hexagon screwdriver, an additional stiffening bar, an external spacer kit, a sliding bar kit and more. Unlike typical Euro profile cylinders, this advanced cylinder has an emergency function that allows you to open the door from the outside, even if a key is inserted inside. The Aqara Adjustable Cylinder is the perfect addition to your Aqara Smart Lock U200, offering unrivalled flexibility, ease of installation and enhanced security for your home. Scope of delivery: Adjustable cylinder × 1, Key × 2, Cylinder adapter × 1, Hexagon screwdriver × 1, Additional stiffening bar × 14, External spacer set × 8, Slide bar set × 1, Cylinder screw × 1, Screw set × 1, User manual × 1.