Is the Kevo Smart Lock Traditional and Contemporary, 2nd Gen compatible with Honeywell Wi-Fi Thermostats?

Yes, with selected Models: RTH9590WF, RTH9580WF, RTH8580WF, and RTH6580WF. If you would like to connect to a compatible Honeywell Wi-Fi Thermostat you can do the following:

1. Go to your Kevo Application
2. Go to Preferences “Place Gear icon image here”
3. Select ‘Connect with Honeywell’ to link Kevo and Honeywell.