The installation guide and package were conclusive. The thermostat works perfectly fine with the application. Also, I was amazed how easily it synched with Google Home!
The Honeywell T9 is was easy to install. I really like the extra room sensor and being able to control to the appropriate room for comfort. Very happy with my purchase.
Said it was going to have HomeKit support when lunched at CES2019 by end of year and still nothing in April 2020. Otherwise it is a good design, works well, and happy with it overall.
I have bought 10 of these of similiar types. One has failed twice by dropping off wifi had to be replaced. I have to call in installer since Honeywell will not stand by warranty unless professional installed it replaces itl