Honeywell RCHT8612WF T5+ Smart 7 Day Programmable Touchscreen Thermostat with Ge fencing, Requires C Wire, Works with Alexa : Amazon.co.uk: DIY & Tools
Just moved into a new house and I'm trying to wire an Ecobee 3. I pulled off an old Honeywell Lyric T5 “smart” thermostat and noticed that there was no Ground wire
Honeywell Lyric T5 review: This "budget" Wi-Fi thermostat speaks fluent Siri and Alexa - CNET