Ive got one of these laying around not being used anymore...It was used about for a week and then we got sick of it because the unit had to be pretty much line of sight to the heatpump IR (and we had a baby at the time who was about to crawl)....
https://pebbleair.com/about.html#about
It's from 2015, so assume if its fired up it can be updated etc. I did read somthing somewhere about having to reset them on the manufacturers end too... but I could be wrong.
PM if me if you are keen to buy...

