Honeywell Home THX321WF2003W/U

T10 Pro WIFI RedLink Thermostat

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The Honeywell Home THX321WF2003W/U T10 Pro Thermostat offers RedLink and WIFI connectivity, and it is compatible with the Total Connect 2.0 platform. The programmable thermostat has a prominent touchscreen display and numerous heating and cooling modes. Learn about the T10 Pro Thermostat.
  • Amazon Alexa
  • Total Connect
  • WiFi
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The Honeywell Home THX321WF2003W/U T10 Pro WIFI RedLink Thermostat provides smart control over the HVAC system in your home or office. As a Honeywell Home RedLink Thermostat, it pairs nicely with the Total Connect 2.0 platform. No additional central RedLink hub is required to get started.

When it's time to set up your new Honeywell Home T10 Pro Thermostat, start by cutting power to your HVAC system at the circuit breaker. Before removing the existing thermostat, be sure to mark where all wires go, or take a picture of the existing wiring. Then remove the existing thermostat, and install the T10 Pro in its place. Much like the other T-Series Thermostats from Honeywell Home, the T10 Pro uses a convenient UWP mounting system. This allows you to quickly swap out models or upgrade to a newer variant if needed.

Upon installing and powering the T10 Pro, you can then get it connected to your local WIFI network. By doing this, you will be able to integrate the thermostat with the Honeywell Home App on your phone. This serves as the primary mobile application for the thermostat, and you can use it to heat or cool your home or office from anywhere. Total Connect 2.0 also supports a great integration with Honeywell Home. Using TC2 is very convenient to have your automation devices on the same platform as your security system. This allows you to control both types of devices from a single app.

Even on its own, there is so much that you can do with Honeywell Home. It allows you to set up rules and temperature settings that are dependent upon a time-based schedule, or based upon GeoFencing location. Many users appreciate the GeoFencing capabilities, as they can have their thermostats automatically activate as they get closer to home to ensure comfort when they arrive, while maintaining minimal operation throughout the bulk of the day to save on energy costs. It also helps that the T10 Pro is Energy Star certified! It can also be used with most demand response programs if needed.

There are various smart home integrations supported by Honeywell Home, including Amazon Alexa, Google Assistant, and more. All you need to do to get started is pair your Honeywell Home account with the compatible smart assistant of your choosing, This will give you more ways to control the thermostat through spoken voice commands. Of course, local control will remain supported on the thermostat, allowing you to take advantage of the device's big and prominent touchscreen display with backlighting for easy operation at night. Please note that no remote room sensor comes bundled with this thermostat. Alarm Grid offers the same T10 Pro Thermostat with a room sensor here.


  • Device Type: RedLink WIFI Thermostat
  • Compatibility: Total Connect 2.0
  • Application: Honeywell Home
  • Mounting: UWP Mounting System from Honeywell Home
  • Programming Options: 7-Day, 5-1-1 Day, 5-2 Day, 1 Week, Non-Programmed, Sensor Priority Scheduling
  • Electrical Ratings: 20VAC to 30VAC
  • Stages: 3 Heat / 2 Cool Heat Pumps ; 2 Heat / 2 Cool Conventional Systems
  • Backlit Display: Yes
  • Touchscreen: Yes
  • Screen Size: 7.27 sq inches
  • Operating Temperature: 37°F to 102°F
  • Storage Temperature: -20°F to 120°F
  • Operating Humidity: 5% to 90%, Non-Condensing

Brand: Honeywell Resideo

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