the sensor tells the thermostat what the temperature is in the room where it’s placed and the thermostat uses that reading to control when the system turns on or off to keep that room the temperature you like.
Put different temperature sensors in different rooms, like the baby’s room or living room
Compatible with select Nest thermostats. Including Nest Learning Thermostat, 3rd Gen and Nest Thermostat E.
The Nest Temperature Sensor is easy to set up; just hang it on the wall or place it on a shelf
The Nest sensor runs on batteries so it works in most homes; batteries can last up to 2 years
The Nest Temperature Sensor is a great addition to your smart home; its simple design blends into any home
Long battery life - Works on CR2 3V lithium battery (included) with up to 2-year lifetime. | Connectivity : Wireless, Bluetooth Low Energy connection. | Up to 50 feet range. Allows easy placement.