Yale assurance lock YRD226ZW2619

I do not own this particular model of the lock but can answer 3 of yours questions.

  1. You can use the ST Smark Locks Smart app, @RBoy Lock User Management Smart app or @ethayer Lock Manager Smart app.
  2. It should connect with either the z-wave or zigbee module.
  3. If there is an outage, you can use the keypad on the lock. There is no Yale app since the device connects to your hub if you purchase only the z-wave or zigbee module. If the August module is available for this model of the Yale lock then you can use August Connect app but not ST

https://support.smartthings.com/hc/en-us/articles/200958090-Smart-Locks

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