The Nuki Smart Lock 3.0 Pro for the Swiss round profile cylinder turns your smartphone into a smart key. The electronic door lock is mounted within a few minutes on the inside of your door above the existing... Show more The Nuki Smart Lock 3.0 Pro for the Swiss round profile cylinder turns your smartphone into a smart key. The electronic door lock is mounted within a few minutes on the inside of your door above the existing lock cylinder and is not visible from the outside. With the free app (iOS/Android), you open and close your door keylessly. You can create up to 200 permanent, temporary or recurring virtual keys with the Nuki app. You can manage these access permissions on the go and keep an eye on your door from afar. You can remove your Nuki Smart Lock without leaving any residues, making it ideal for rental properties. Product Highlights: - Easy retrofitting on the inside of the door, without drilling or screwing, within 3 minutes - Encrypted and certified security for your door lock - Automatically unlock and lock your door thanks to "Auto Unlock & Auto Lock" function - Assign up to 200 permanent, temporary or recurring virtual keys to family, friends, dog sitters and cleaners with the Nuki app - Experience maximum convenience and manage your door remotely with integrated WiFi module - Up to 6 months autonomous power supply by the built-in rechargeable Nuki Power Pack - High-quality manufacturing and elegant design of the knob with aluminum finish - Supports Apple HomeKit (Siri), Amazon Alexa, Google Home and other smart assistants - Can be combined with smart home services and smart doorbells - Conveniently controllable by Android Wear, Apple Watch, Tizen OS, Huawei Harmony OS and Garmin Watch OS and more. Compatible with popular rotary knob cylinders. 1 adapter for Dormakaba/Kaba (yellow) included. Other adapters can be ordered separately. Important note: If you use the Nuki Opener in addition to the Smart Lock 3.0 Pro, you also need the Nuki Bridge.