T10 / T10+ Pro Smart Thermostat

Honeywell Home T10 / T10+ Pro Smart Thermostat

The Honeywell Home T10 and T10+ Pro Smart Thermostats with RedLINK 3.0 are connected thermostats designed to control compatible residential heating and cooling systems. They feature a touchscreen display, WiFi connectivity, Apple HomeKit support, and compatibility with wireless room sensors for temperature monitoring and room prioritization.

The thermostat displays the current indoor temperature, desired temperature setpoint, indoor humidity, and the number of rooms being prioritized. Its touchscreen provides access to system mode, fan settings, scheduling, room priority, and other thermostat settings.

The T10 and T10+ Pro can connect to the First Alert by Resideo app for connected thermostat management. The thermostat can also be paired with Apple HomeKit through the Apple Home app.

Compatible wireless room sensors allow the thermostat to calculate an average temperature using selected rooms rather than treating every room equally. Room priority can be based on manually selected rooms or automatically determined by detected activity.

The thermostat uses RedLINK 3.0 technology and includes a touchscreen menu for adding compatible devices and sensors.

Supported Thermostat Models

The T10 or T10+ Pro Smart Thermostat with RedLINK 3.0 Getting Started Guide covers the following model numbers.

The instructions apply to the T10 and T10+ Pro models identified in the guide.

Product Features and Functions

The thermostat provides touchscreen temperature controls and connected features for managing home comfort.

Thermostat Touchscreen and Display Guide

The T10 and T10+ Pro use a touchscreen interface to display indoor conditions and provide access to thermostat settings.

Home Screen Components

Indoor Temperature

The main temperature reading on the touchscreen shows the current indoor temperature.

This value represents the temperature information currently displayed by the thermostat.

Desired Temperature

The desired temperature represents the temperature setpoint selected for the heating or cooling system.

The setpoint can be changed using the on-screen temperature adjustment arrows.

Indoor Humidity

The thermostat displays the current indoor humidity percentage.

The humidity value appears on the Home screen alongside the temperature and priority information.

Current Priority

The Current Priority area displays the type of room priority being used and the number of rooms included.

For example, the Home screen illustration shows two rooms being prioritized.

Room priority allows temperature control to focus on selected areas of the home.

Menu

The Menu provides access to additional thermostat functions.

The user guide identifies the following menu features:

• Mode
• Fan
• Schedule
• Priority
• WiFi
• Devices & Sensors
• Connect App
• Connect HomeKit

The available menus provide access to thermostat operation, connectivity, and compatible wireless sensor functions.

How to Wake Up the Thermostat Screen

The thermostat display can be activated by touching the center of the displayed temperature.

Steps to Wake the Screen

1. Locate the temperature reading in the center of the display.
2. Touch the center area of the displayed temperature.
3. The thermostat screen will wake up.
4. Use the available touchscreen controls.

The touchscreen can then be used to change the temperature or open thermostat menus.

How to Adjust the Temperature

The thermostat uses on-screen arrows to adjust the desired indoor temperature.

Step-by-Step Temperature Adjustment

1. Wake the thermostat screen by touching the center of the displayed temperature.
2. Locate the desired temperature setting.
3. Touch the Up arrow to increase the desired temperature.
4. Touch the Down arrow to decrease the desired temperature.
5. Check the desired temperature displayed on the screen.

The selected temperature is displayed separately from the current indoor temperature.

Current Temperature vs. Desired Temperature

The thermostat Home screen displays both values to distinguish current conditions from the desired setting.

Accessing Thermostat Settings

The Menu contains the thermostat’s operating settings and additional features.

How to Open the Menu

1. Wake the thermostat screen if necessary.
2. Touch the Menu icon.
3. Select the required feature from the available menu options.

Settings Available Through the Menu

How to Connect the T10 / T10+ Pro Thermostat to WiFi

The thermostat can be connected to a wireless network through its touchscreen menu.

Step 1: Open the Menu

Touch the Menu icon on the thermostat Home screen.

Step 2: Select WiFi

Scroll through the menu options until WiFi appears.

Touch Wi-Fi.

Step 3: Choose a Network

Touch Choose Network.

The thermostat will display the network selection interface.

Step 4: Select the Wireless Network

Select the desired wireless network.

WiFi Setup Summary

The thermostat’s touchscreen provides the connection interface for selecting the wireless network.

Downloading the First Alert by Resideo App

The T10 and T10+ Pro can be connected to the First Alert by Resideo app.

The app is available through the Apple App Store and Google Play.

Step 1: Download the App

Open the App Store or Google Play on a compatible mobile device.

Search for First Alert by Resideo and download the app.

Step 2: Create an Account or Sign In

If a First Alert account has not been created:

1. Open the app.
2. Follow the instructions to create an account.

If an account already exists, sign in using the app.

First Alert App Setup Requirements

How to Connect the Thermostat to the First Alert App

After downloading the First Alert by Resideo app, the thermostat can be connected using its touchscreen.

Step 1: Open the Thermostat Menu

Touch the Menu icon on the thermostat Home screen.

Step 2: Select Connect App

Scroll through the thermostat menu.

Touch Connect App.

Step 3: Follow the On-Screen Instructions

Follow the instructions displayed on the thermostat screen to continue the app connection process.

The First Alert app should be installed on the mobile device, and the required account should be ready for use.

App Connection Summary

How to Connect the Thermostat to Apple HomeKit

The T10 and T10+ Pro support Apple HomeKit setup through the Apple Home app.

Step 1: Open the Thermostat Menu

Touch the Menu icon at the bottom of the thermostat Home screen.

Step 2: Select Connect HomeKit

Scroll down through the menu.

Select Connect HomeKit.

Step 3: Open Apple Home

Open the Apple Home app on the mobile device.

Select Add Accessory.

Step 4: Scan the Thermostat Code

Use the phone to scan the code displayed on the thermostat screen.

Step 5: Complete the Setup

Follow the instructions displayed on the phone.

The pairing process is completed through the Apple Home app.

Apple HomeKit Setup Summary

Installing Wireless Room Sensors

Compatible wireless room sensors can be added to the T10 or T10+ Pro through the thermostat’s Devices & Sensors menu.

These sensors support room-based temperature prioritization.

Step 1: Open the Menu

Touch the Menu icon on the thermostat.

Step 2: Select Devices & Sensors

Scroll through the menu and touch Devices & Sensors.

Step 3: Select Add

Touch Add.

Step 4: Follow the Instructions

Follow the instructions displayed on the thermostat screen to complete the sensor installation process.

Wireless Sensor Installation Summary

Wireless Room Sensor Placement Instructions

Correct sensor placement is important for obtaining useful room temperature readings and supporting the priority feature.

Recommended Placement Height

Room sensors should be positioned approximately 5 feet (1.5 meters) above the floor.

Recommended Wall Location

Sensors should be installed on interior walls.

Locations to Avoid

The manufacturer identifies several unsuitable sensor locations.

Why Sensor Placement Matters

The room sensors provide temperature information used by the thermostat’s Priority function.

Selected rooms contribute to the average temperature used for room-based comfort.

The manufacturer recommends avoiding locations where furniture, doors, direct sunlight, or air vents could interfere with the sensor’s intended operation.

How to Use Room Priority

The Priority feature calculates an average temperature using selected rooms.

This allows the thermostat to prioritize comfort in areas chosen by the user or identified through detected activity.

Two priority methods are described:

• Selected Rooms
• Active Rooms

Understanding Room Priority

The thermostat can use temperature readings from compatible wireless room sensors to calculate an average temperature.

Not every room must contribute to the average.

The priority method determines which rooms are included.

Room Priority Methods

Selected Rooms Priority

Selected Rooms allows specific rooms to be included in the temperature average.

How Selected Rooms Works

Rooms that are manually selected contribute to the average temperature.

Rooms that are not selected do not contribute.

Selected Room Behavior

Selected Rooms Example

If several wireless room sensors are installed throughout the home, only the rooms selected for priority are included in the average temperature calculation.

This allows the thermostat to focus on the chosen rooms rather than using every available room sensor.

Active Rooms Priority

Active Rooms uses motion detection to select rooms automatically.

Rooms where activity is detected contribute to the average temperature.

Rooms without detected activity are excluded.

How Active Rooms Works

When a compatible room sensor detects motion, its room can be selected automatically for temperature averaging.

If no motion is detected in a room, that room does not contribute to the average.

Active Room Behavior

Active Rooms Example

When activity is detected in a room, that room contributes to the temperature average.

A room without detected activity is excluded from that average.

The active-room selection changes according to the activity detected by compatible wireless room sensors.

Selected Rooms vs. Active Rooms

The two priority methods differ in how rooms are chosen for temperature averaging.

Choosing the Priority Method

Selected Rooms is intended for situations where specific rooms should contribute to the average temperature.

Active Rooms uses detected activity to determine which rooms contribute.

Both methods support room-based temperature averaging using compatible wireless sensors.

Understanding the Current Priority Display

The Home screen shows the current priority status.

The display includes:

• Priority type
• Number of rooms currently prioritized

This information allows the current room priority status to be checked directly from the thermostat.

For example, the illustrated Home screen shows a priority count of two rooms.

Technical Support and Customer Assistance

For technical problems, the manufacturer directs users to their service provider or installer.

The guide provides a section for recording the servicing company’s contact information.

Service Provider Information

The servicing company should be contacted when technical assistance is needed.

Honeywell Home Customer Support

Manufacturer Address

Resideo Technologies, Inc.

Scottsdale, AZ 85254

United States

Apple HomeKit Certification Information

The T10 or T10+ Pro Smart Thermostat supports Apple HomeKit pairing.

The Works with Apple badge indicates that an accessory has been designed for the technology identified by the badge and has been certified by its developer to meet Apple’s performance standards.

Apple is not responsible for the operation of the device or its compliance with applicable safety and regulatory standards.

Electronic Waste Disposal

The thermostat must not be discarded with ordinary household waste.

At the end of its service life, it should be taken to an authorized collection center or appropriate electronic equipment recycler.

Correct disposal of electronic equipment helps reduce potential negative effects on the environment and human health.

Frequently Asked Questions

1. How do I connect the Honeywell Home T10 or T10+ Pro thermostat to WiFi?

Touch Menu on the thermostat Home screen, then scroll to WiFi and select it. Touch Choose Network and select the desired wireless network. The thermostat displays the network connection interface for completing the connection.

2. How do I connect the T10 Pro Smart Thermostat to the First Alert by Resideo app?

Download the First Alert by Resideo app from the Apple App Store or Google Play. Create an account if necessary or sign in to an existing account. On the thermostat, open Menu and select Connect App. Follow the on-screen instructions to complete the connection process.

3. How do I pair the Honeywell T10 or T10+ Pro thermostat with Apple HomeKit?

Touch Menu at the bottom of the thermostat Home screen and select Connect HomeKit. Open the Apple Home app, select Add Accessory, and scan the code displayed on the thermostat using the phone. Follow the instructions in Apple Home to complete pairing.

4. How do I add wireless room sensors to the Honeywell T10 Pro?

Touch Menu on the thermostat, select Devices & Sensors, and then touch Add. Follow the instructions displayed on the thermostat screen. The manufacturer recommends placing compatible room sensors approximately 5 feet above the floor on interior walls, away from direct sunlight, air vents, furniture, and doors.

5. What is the difference between Selected Rooms and Active Rooms on the T10 thermostat?

Selected Rooms uses the temperature readings from rooms manually selected by the user. Rooms that are not selected do not contribute to the average temperature. Active Rooms automatically includes rooms where motion is detected and excludes rooms without detected activity. Both methods use room temperature averaging to prioritize comfort.

6. How do I adjust the temperature on the Honeywell T10 or T10+ Pro thermostat?

Touch the center of the displayed temperature to wake the thermostat screen. Use the Up and Down arrows to select the desired temperature. The Home screen displays the current indoor temperature separately from the desired temperature setpoint.

7. Where should Honeywell T10 wireless room sensors be installed?

The manufacturer recommends placing wireless room sensors approximately 5 feet (1.5 meters) above the floor on interior walls. Sensors must not be placed behind furniture or doors, in direct sunlight, or above air vents. These placement guidelines help support the room temperature measurements used by the Priority function.

8. Where can I get support for the Honeywell T10 or T10+ Pro Smart Thermostat?

For technical problems, contact the servicing company or thermostat installer. Additional assistance is available through Honeywell Home at honeywellhome.com or by calling 1-800-633-3991. The thermostat is manufactured by Resideo Technologies, Inc., which uses the Honeywell Home trademark under license from Honeywell International, Inc.