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Small white round sensor with matte porcelain finish

Google

Google Nest Temperature Sensor GA05552-US White

SKU CH-0H6D-CKW9A MPN GA05552-US

A Bluetooth temperature sensor that works with Nest thermostats and supports up to six rooms via the Google Home app

  • Connection protocolBluetooth
  • Product colorPorcelain
  • Product typeTemperature Sensor
  • DetailsCompatible with Nest thermostats A feel-good design
  • Key featuresTemperature Detector Bluetooth Wireless Connectivity
  • In the boxNest Temperature Sensor, CR2 lithium battery, Screw, Box
  • Simple setup via the Google Home app
  • Battery lasts up to 3 years for flexible placement
  • Schedule room temperatures for specific times of day
  • Connect up to six sensors for prioritised or averaged comfort
  • Works with Nest Learning Thermostat 4th gen, 3rd gen and Thermostat E

Google Nest Temperature Sensor (2nd Gen)

The Google Nest Temperature Sensor (2nd Gen) is a wireless device that measures room temperature and sends readings to a compatible Nest thermostat. It is designed for homeowners who want to balance heating and cooling across multiple rooms using the Google Home app. The sensor runs on an included CR2 lithium battery and mounts on a wall or sits on a shelf.

Bluetooth connectivity and thermostat compatibility

The sensor communicates via Bluetooth and works with the Nest Learning Thermostat (4th gen), Nest Learning Thermostat (3rd gen), and Nest Thermostat E. Pairing is handled in the Google Home app, and the battery is rated to last up to 3 years. Up to six sensors can be linked to one thermostat system for prioritised or averaged temperature control.

Suits multi-room homes

This sensor suits households that already own a compatible Nest thermostat and want to manage temperature in specific rooms such as bedrooms or nurseries. It is not for homes without a supported Nest thermostat, for users needing humidity or air-quality data, or for setups that require Wi-Fi or Thread connectivity instead of Bluetooth.

How it compares

Measured against everything we stock in Alarm Kits & Motion Sensors, at today’s prices. Recalculated every night.

Price $33.99
Pricier than about 54% of the 180 comparable items (median $30.99).

Specifications

Product
Brand nameGoogle
Model nameGoogle Nest Temperature 2nd Gen
Part numberGA05552-US
Product colorPorcelain
Product typeTemperature Sensor
Connectivity
Connection protocolBluetooth
Size & build
Shipping weight0.34 kg
Package size229 × 152 × 102 mm
Compatibility
Alexa supportYes
Google Assistant supportYes
HomeKit supportYes
In the box
In the boxNest Temperature Sensor, CR2 lithium battery, Screw, Box
Software
App supportYes

Questions about this item

How does the sensor's temperature reading change what the thermostat does?

Place the sensor in any room and set a target temperature for specific times in the Google Home app; the compatible Nest thermostat will then heat or cool to meet that room's reading.

What does the Bluetooth connection actually let the sensor do?

The sensor uses Bluetooth to send temperature data to a compatible Nest thermostat, allowing the thermostat to adjust the system based on that room's conditions.

What do I need on the wall to mount the sensor?

The box includes a screw for wall mounting; the sensor is battery-powered so no wiring or power outlet is required at the mounting location.

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