Hi @jamokebob. The Ring Alarm system utilizes Z-Wave, so some Honeywell Z-Wave thermostats can be integrated with it via the Ring app. Other Honeywell thermostats are also available in the Ring app via Amazon and Ring account linking, which you can learn more about [here](https://support.ring.com/hc/en-us/articles/360058109871-Honeywell-Home-T5-T6-T9-and-T10-Pro-Smart-Thermostat-Set-Up-and-Use). If your Ecobee thermostat utilizes Z-Wave, you may be able to set it up in the Ring app, though we can't guarantee it will work or what functionality will be available as it is not officially supported. I'd suggest checking with the Alexa app to see if you can add your Ecobee thermostat there for any additional smart controls.