Top Post has both the device handler and the app. I am not sure if the one posted saying X3400 has the fingerprint for the IRIS Lowe’s version, but if not it is posted down in another post.
If not look at post somewhere near #514 just do a search for IRIS Keypad.
The rule is from Rule machine and Here is the link Rule Machine rule
It is the post where Bruce says he found another way and includes a link to a device type. You will have to read all the posts above he explains how to add the rule etc. You have a bunch of research now.