Let Yale welcome you home with it’s very first retrofit biometric smart lock: the Yale Approach Lock with Wi-Fi + Keypad. This discreet, interior-only lock installs over your existing deadbolt and lets you keep your keys, while the keypad can be placed anywhere within Bluetooth(R) range- so you're effortlessly enhancing your door without changing a thing about it. Thanks to the biometric keypad, enjoy an extra layer of convenience and security and enter your home with just a simple touch of your finger. With multiple ways to lock your door- including Auto-Lock with Doorsense and One-Touch Locking, and the ability to easily track who comes and goes using the Yale Access App, rest easy knowing your home is secure at all times.