What’s the difference between the T9 Smart Thermostat and the T10 Pro Smart Thermostat?

The T10 Pro is sold through our professional HVAC installers. It offers additional controls that enable HVAC contractors to tailor the thermostat to your specific equipment’s capabilities. The T10 also offers the ability to control humidifiers, dehumidifiers and ventilation. It’s installed by a professional and gives the installer a broader range of installation options to synchronize all those indoor air quality devices.

Which smart home apps are compatible with the T9 Smart Thermostat and T10 Pro Smart Thermostat?

Currently only Amazon Alexa and Google Assistant can view and control both the thermostat and sensors.
HomeKit, IFTTT, SmartThings and Cortana will allow you to change setpoints on your thermostat, but cannot view the sensor readings at this time.

Tell me about the difference between the T9/T10 Smart Room Sensors and a zoned HVAC system

The thermostat uses up to 20 wireless sensors to read temperatures in multiple rooms of your home. Based on your preferences, the thermostat can read from, and average, these multiple sensors and the thermostat. The T9 and T10 Smart Thermostat will calculate the average of the temperatures detected in all selected or active rooms to deliver the best temperature to your whole home. In this way, the T9 and T10 Smart Thermostats work with the sensors to make you feel closer to your desired temperature, wherever you are in the home.

While the T9 and T10 thermostat can better fine-tune your comfort in your home, it’s important to distinguish that no thermostat alone, regardless of sensors, can maintain separate temperatures in different rooms without air dampers or smart vents. Honeywell Home provides a true zoning solution that can be purchased through a professional contractor at https://www.honeywellhome.com/us/en/find-a-pro/.

For homes that already utilize a zoning solution, such as a zone control board or duct dampers, Smart Room Sensors can still help further increase comfort and savings by providing a more accurate reading of the temperature in each zone. A T9 or T10 Smart Thermostat would be required for each zone being controlled, and each thermostat will require its own sensors, based on your desired level of control. Smart Room Sensors cannot connect with more than one thermostat.

If you have any questions about whether or not the T9 and T10 Smart Thermostat is the best option for your home, you can contact our support team or find a local pro.

Are the T9/T10 thermostats compatible with Z-Wave technology?

No, these are not Z-Wave thermostats, for those installations, we recommend the T6 Pro thermostat or the T5 Z-Wave Thermostat.

What is the difference between T9/T10 Pro Smart Room Sensors and a zoned HVAC system?

he T9 and T10 Pro Smart Thermostat uses up to 20 wireless sensors to read temperatures in multiple rooms of your home. Based on your preferences, the thermostat can read from, and average, these multiple sensors and the thermostat. The T9 and T10 Smart Thermostat will calculate the average of the temperatures detected in all selected or active rooms to deliver the best temperature to your whole home. In this way, the T9 and T10 Smart Thermostats work with the sensors to make you feel closer to your desired temperature, wherever you are in the home.

While the T9 and T10 thermostat can better fine-tune your comfort in your home, it’s important to distinguish that no thermostat alone, regardless of sensors, can maintain separate temperatures in different rooms without air dampers or smart vents. Honeywell Home provides a true zoning solution that can be purchased through a professional contractor.

For homes that already utilize a zoning solution, such as a zone control board or duct dampers, Smart Room Sensors can still help further increase comfort and savings by providing a more accurate reading of the temperature in each zone. A T9 or T10 Smart Thermostat would be required for each zone being controlled, and each thermostat will require its own sensors, based on your desired level of control. Smart Room Sensors cannot connect with more than one thermostat.

If you have any questions about whether or not the T9 and T10 Smart Thermostat is the best option for your home, you can contact our support team or find a local pro.

For additional support content, please view our dedicated resources and support page for the Honeywell Home T9 Smart Thermostat, T10 Pro Smart Thermostat and Smart Room Sensors. You will be able to view Frequently Asked Questions (FAQs), Support Videos, Product Guides & Manuals, Phone Support and more.

Why is my thermostat showing up as offline?

If you are unable to complete the setup/connection/registration process, or if your thermostat frequently loses wi-fi connection, attempt the following before reconnecting:

Power cycle the thermostat by removing it from the wall for 30 seconds. Reattach the face plate.

Turn off mobile/ cellular data on your mobile device and connect to your home Wi-Fi network. “Forget” any other Wi-Fi networks in range. (Turning on Airplane mode is also an option)

Some Android phones have an updated security feature that may not allow your phone to connect to “unsecured” Wi-Fi networks. Temporarily disable this feature via Settings – Network & Internet – Wi-Fi – Wi-Fi Preferences on your mobile device.

Attempt to connect and register the thermostat to a mobile hotspot. This allows the registration data to bypass any network security that may be causing the connection failure. Once successfully registered, a Wi-Fi Reset can be performed to move the thermostat to the home Wi-Fi network.

Advanced Steps:

If you experience inability to connect, failure to register, or frequent Wi-Fi signal loss, verify the following:

*You may need assistance from your Internet Service Provider to verify/ change some settings*

  • Setup a 2.4GHz Bandwidth Only network with separate SSID (Not compatible with 5GHz networks. Simultaneous 2.4 and 5GHz networks that share a name or SSID are not recommended and can cause thermostat to lose connectivity). * The T9/T10 thermostats are capable of communicating on a 5Ghz wi-fi network – all other models currently only operate on the 2.4GHz bandwidth*
  • Connect directly to the router signal – Not recommended for use with signal booster, satellites, or extenders.
  • Business Networks (Enterprise networks, guest networks, or networks that require logging in via a web page/portal) are not supported.
  • Gateways or Network switches can block some traffic to Honeywell / Resideo and are not supported.
  • Recommended WPA2-AES Network Security Protocol
  • DHCP Enabled – Static networks not supported
  • UPnP / P2P Enabled
  • Band-Steering Disabled

*”Not Supported” refers to network configurations that may be compatible, but cannot be successfully supported by Resideo Customer Care. “Incompatible” refers to networks / configurations that the thermostat is incapable of communicating with.*

Specifications

T10 Pro Smart Thermostat With Redlink Room Sensor

Thermostat TypeProgrammable, Communicating, Low Voltage, Digital
WiFi Specifications802.11b, 802.11g, 802.11n, 2.4GHz range, 5GHz range
ColorWhite
IncludesThermostat, UWP Mounting System, Installation (J-box) Adapter, RedLINK Indoor Sensors
Program Modes7-Day Programmable, Geofencing, Manual / Not Programmed, Occupancy Through App
Utility RewardsYes
Display TypeTouch Screen
Fan FunctionCycled, Continuous
Power SupplyHardwired
Product Height4.9 in
Product Length3.7 in
Product Width0.93 in
Warranty5 Years
Energy Star CertifiedYes
Stages3 Heat/2 Cool Heat Pumps, 2 Heat/2 Cool Conventional Systems

Downloads

C-Wire Adapter Guide [pdf]: 33-00422EF C-Wire Adapter Guide

Professional Install Guide [pdf]: T10 Pro Smart Thermostat with RedLINK

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