Well, I had no idea. I just knew I liked it. Once I got it home I sat it on a shelf and noticed my junk stash of old door knobs. Some of the knobs are from our house and some I collected at the junk ...

For a door where you intend to keep the existing deadbolt keyway, we recommend the Yale Approach Lock with Wi-Fi + Keypad. Installing the hardware was painless, as was setup in the Yale Access app.