I have registered both, one public (outdoor) and one private (indoor) at my home. I have the registration email from both. When I click on the link to view the indoor unit from the email I only see the outdoor unit showing.
There was one time I saw both when I looked at the 24 hour graph but I’m not sure how that happened and can’t seem to replicate it now. I do see on the graph an “A” and a “B” option for my address but those appear to be identical on the graph (vs the one time it shows both and the graph readings were totally different as expected for indoors and outdoors).