I cannot say more than this, but I find it the images from OP dodgy. Maybe post some of the conversations you had with them.
Also weird you bought from them on the same day they created their domain. Looks like a troll post to me.

It looks quite interesting, I am going to test it on a few miners as I am currently looking for a new monitoring tool for our miners.

Impressive work on these.

How weather resistant are they? Do you ship to Europe?