Brand New Honeywell TH8320WF1029 WI-FI Vision Pro 8000 Thermostat 3H/2C 7 Day Programmable. All you need is a wireless router in your house with internet access and you can remotely control this thermostat via the free smart phone app and free online application. You can change the temperature setting and system settings from anywhere. You do not need the Honeywell Gateway with This thermostat.