- Yale has one that will work, but by the time you add a keypad you’re talking about maybe $200. It’s an expensive solution, but works out of the box with a lot of features.
- IKEA has a very inexpensive $20 one that works with NFC cards, but doesn’t work with smartthings.
- Zemismart has a Tuya Bluetooth model which should work with the tuya app and you can get some limited Integration with smartthings that way via scenes, but I don’t know exactly how much. So I’m going to list Tuya, but again, I don’t know what integration options it will have. And if you want out of home control as well you will need the Tuya Bluetooth hub also.
To get a keypad that works with it, you would have to go through smartthings, so it’s doable but more expensive
- if you can find any lock you like that will react to a power cut, then you can just plug it into a smart plug or wire an in-line relay and do it that way.
So there are some options depending on how much work you want to do yourself and how much Integration you need.