The TH1420ZB Smart 24V thermostat is specifically designed to control hydronic radiant floor heating systems (water and glycol), electrical systems (with relay) as well as furnaces (without fan control)

• Works with many home automation platforms
• Can be voice controlled with the Google Assistant (Google Home) and Alexa (Amazon Echo) through SmartThings
• Can display the outdoor temperature
• Temperature display in Celsius or Fahrenheit
• Backlit display

* The installation requires the presence of 3 wires: supply, load and common.