Eufy Security Retro Fit Smart Lock

Multiple Ways to Unlock】: Open remotely via Bluetooth or Wi-Fi with the eufy Security app, Alexa, and the Google Assistant. Or use the wireless keypad or the backup key.
【Automatic Locking and Unlocking】: A built-in sensor detects when your door is closed and locks it automatically behind you, keeping your home secure even when you’re in a hurry or your hands are full. iPhone automatic unlocking supported.
【Control From Anywhere】: Unlock Smart Lock from anywhere, anytime, right from your phone via the eufy Security app. Let in friends and guests without having to get up, or unlock for your cleaner or kids while you’re at work.
【Easily Install and Fit Over Your Existing Deadbolt】: Retrofit Smart lock fits on the inside of your door, making your regular deadbolt smarter, more secure and way more convenient. Avoid the call to a professional and fit Retrofit Smart Lock R10 over your existing deadbolt by yourself—upgrading your current door lock to a smart one. Even if you’re not so handy, installation only takes about 10 minutes.
【Advanced Security】: Retrofit Smart Lock stores your in-app data locally using an AES128 encryption chip, rather than in the cloud, to keep your personal information safe and private.