I'll be honest here.... I don't know much about these "devises" but am not overly thrilled with what I am seeing. My first encounter with these was within the last week... came upon one that was being used/tested for the building I work at. The one I have seen is a bit different in looks... the screen is bigger and the stand reminds me more of what you'd use for sheet music. Other than that, the two devises seem to have a lot in common... they can tell your temperature and even if you are wearing a face mask. The one I have seen work will tell you your temperature and let you know if entry is allowed or denied. It will also tell you if you aren't wearing a face mask and deny you entry to the building.
I'm not overly thrilled with it but realize some people may find them interesting or even desirable to use.