- Activate the SmartSensor
- Pair with Your Thermostat
- Name and Place Your Sensor
- Configure Comfort Settings
Most users complete this in under 15 minutes
Overview
This guide explains how to set up and pair an Ecobee SmartSensor with your Ecobee thermostat. It covers activating the sensor, pairing it through the Ecobee app, and optimal placement for accurate temperature and occupancy sensing to improve home comfort.
What's Included
- Ecobee SmartSensor unit
- Detachable stand for shelf placement
- CR2477 coin-cell battery (pre-installed)
- Adhesive wall-mounting strip
- Your Ecobee thermostat is already installed
- Your smartphone with the Ecobee app
Got your materials ready? Here's what to check first.
Before You Start
- An installed and working Ecobee thermostat
- The Ecobee app on your smartphone
- The plastic battery tab is removed
- The sensor is within range of the thermostat
- Bluetooth is enabled on your smartphone
- You are logged into your Ecobee account
Don't skip this step — it breaks everything if you do
The CR2477 battery is pre-installed and should last approximately 5 years. Do not attempt to recharge it.
Tools & Requirements
Installation Steps
Activate the SmartSensor
To activate your new SmartSensor, simply pull the plastic tab out of the battery compartment. This will engage the pre-installed CR2477 battery and put the sensor into pairing mode, making it discoverable by your Ecobee thermostat and the mobile app.
Pair with Your Thermostat
Open the Ecobee app on your smartphone. Navigate to the Main Menu, select 'Add a Device', and then choose 'SmartSensor'. The app will provide on-screen instructions to guide you through the quick and easy pairing process with your main thermostat.
Name and Place Your Sensor
Once the sensor is successfully paired, the app will prompt you to give it a name, such as 'Living Room' or 'Bedroom'. Place the sensor in the desired room, ideally on an interior wall about 4-5 feet off the ground, away from direct sunlight or drafts for best results.
Configure Comfort Settings
In the Ecobee app, you can now include this new sensor in your Comfort Settings. You can enable features like 'Follow Me', which averages the temperature only in occupied rooms, or 'Smart Home/Away', which adjusts your system based on overall home occupancy.
Installation Tips
Still stuck? This is usually the deeper cause below.
Place the SmartSensor away from windows, heating vents, and direct sunlight to get the most accurate temperature readings.
Before you go — these Ecobee guides fix most remaining issues.
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Official Manufacturer Manual
Ecobee provides official product documentation through their online manual rather than downloadable PDF. Access setup guides, troubleshooting steps, and product specifications for your Ecobee SmartSensor.
Source: support.ecobee.com
Need More Help? Ecobee Support
Note: The contact information below connects you directly to Ecobee's official customer support team, not Trunetto. They can help with warranty claims, device replacements, and advanced technical issues.
How Does Ecobee Compare?
Before replacing your Ecobee device, see how it stacks up against alternatives in our full comparison guides.


