T9 is a great thermostat. Feature rich including the convenience to control all features from Resideo app(very intuitive) & set-up is easy. As for the remote sensor - jury is still out until summer when I use sensor as the source to dictate A/C climate control (have 1 zone).
Easy enough to install, but a bit finicky when it came to getting the right app to control over the phone. Also letting two people control it was a difficult process. Enablement of Geofencing was also difficult for two different er phones. Need better instructions for that.
Thermostat is good and remote sensors are great to focus control on specified rooms but the Resideo App is not very flexible. Need to dig down into app to make changes. Suggest developers review the Radio Thermostat App for ideas. Run time charts are not available in real time - can only see run time from the previous week. Also, the display on the thermostat does not show current setting - only current temperature.
We switched from the Nest to this, and it made all the difference. We added one sensor in the kids bedroom, and the uneven temperatures that we’re driving us nuts for the last year was instantly fixed. I also love the circulate option on the fan settings. We can’t wait to see the benefit this summer.
Our main thermostat was located in the great room near a staircase and our bedrooms got really hot in the winter unless we made it cold in the great room. We installed this thermostat with sensors in each bedroom and now the temperature is regulated in all rooms! Our unit runs more efficiently as well with the geofencing feature. We’re very satisfied after 3 winter months of usage.