If you have an ecobee4 it comes with one sensor but you ll need to buy them separately if you have the ecobee3 lite.
Ecobee4 remote sensor setup.
You should see a prompt to pair your room sensor on your ecobee s screen.
To start simply pull on the plastic tab attached to the sensor.
Smartsensor is designed to supplement the temperature and occupancy sensor built into your ecobee thermostat unlocking its full potential.
The motion sensors are passive infrared motion sensors.
The remote sensors do not include a humidity sensor but the ecobee does.
Re insert the battery into your room sensor and hold it close to your ecobee.
Ecobee wireless remote sensors use the 915mhz frequency band to communicate with ecobee thermostats.
Simply put they do not require wi fi to work with one another.
To ensure security and privacy the communication between your sensor and thermostat is encrypted.
This means they use the natural infrared radiation given off by all objects as a means of detecting motion and therefore work regardless of light or dark.