Nuki Smart Lock
Nuki (AT) — Motor on the thumb-turn
Applies to these lock types
Euro profile cylinder in a mortise case (DIN) · Multipoint locking system (uPVC / composite)
Fit notes
- Clamps over the existing euro cylinder and turns the thumb-turn or a key left in the cylinder
- Requires an emergency-function (double-clutch) cylinder if a key is left inside
- Optional keypad adds PIN and fingerprint access
- AA battery powered; expect 1–3 months between charges depending on use
Sources
- Best smart locks 2026 (UK): euro cylinder picks compared — Nuki, Yale, August, SwitchBot, Aqara, DORY
- Aqara U200 launch — euro mortise, US deadbolt, emergency function requirement
- Aqara U200 review — 60 mm and 70 mm backsets, UK oval and Scandi cylinders
- Smart locks that work with Home Assistant (UK) — retrofit architectures
- Singapore HDB digital lock market and gate clearance problem