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Nuki Smart Lock Ultra (5th Gen) — Premium retrofit smart lock with built-in Wi-Fi and Thread for direct remote access and fast smart home integration. The Nuki Smart Lock Ultra (5th Gen) is the top-tier model in the Nuki Smart Lock range. Like all Nuki locks it retrofits over your existing euro-profile cylinder, but the Ultra adds built-in Wi-Fi and Thread connectivity — no separate Bridge required for remote access. Control and monitor the lock from anywhere via the Nuki app on iOS or Android. Works with Apple HomeKit (Thread), Amazon Alexa, and Google Assistant natively. Auto Unlock uses geofencing to unlock as you approach; the access log records all events. Time-limited access codes allow keyless guest entry. Suited to homeowners and small businesses who want direct remote control without additional hardware. Key features Built-in Wi-Fi and Thread — no Nuki Bridge required Retrofit over existing euro-profile cylinder Auto Unlock via geofencing Apple HomeKit (Thread), Amazon Alexa, Google Assistant support Time-limited guest access and full access log Remote lock/unlock from anywhere via Nuki app Specifications Model: Smart Lock Ultra (5th Gen) Connectivity: Wi-Fi, Thread, Bluetooth Remote access: Built-in (no Bridge needed) Smart home: Apple HomeKit (Thread), Amazon Alexa, Google Assistant Compatibility: Standard European euro-profile cylinders Need help choosing? Contact us at +27 32 586 3694 or support@audicoonline.co.za.