Specifications
- Mechanical interface scope
- Existing American single-cylinder deadbolt
- Installation method
- Interior retrofit retaining the existing lock
- Drive
- Brushless motor
- Housing diameter
- 2.2 inches, original unit in the release
- Smart-home protocol
- Matter
- Connectivity options
- Thread, Bluetooth, built-in Wi-Fi
Identifying the version and installation conditions
Confirm a single-cylinder deadbolt with a keyed cylinder outside and thumbturn inside, then check the specific lock's tailpiece and installation compatibility list. Existing physical keys remain part of the original mechanical lock system; electronic authorisation does not replace its key-cutting management.
Limitations
- Fingerprint or PIN access requires the appropriate Keypad accessory. The US product release does not establish Euro-profile cylinder compatibility; stated battery-life conditions differ by connection method, and no on-site battery life is guaranteed.
Sources
Nuki official product release information (2025-07-02)Manufacturer documents are provided in their original language.