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Google Nest Temperature Sensor (2nd gen)

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Google Nest Temperature Sensor (2nd gen)
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Does the Google Nest Temperature Sensor (2nd gen) work with HomeKit, Alexa, and Google Home?

The Nest Temperature Sensor (2nd gen) needs a Nest Learning Thermostat (4th or 3rd gen) or a Nest Thermostat E to report to.

It is a Bluetooth LE room temperature sensor. It suits Google Home users, with native support through the maker's hub. It does not support Home Assistant.

At a glance: works withHow this is decided: cited platform facts only
HomeKit
Unknown
Unknown
Google Home
Yes[1]
Proprietary + hub, native
Alexa
Unknown
Unknown
SmartThings
Unknown
Unknown
Home Assistant
No[2][3]
Not supported

Key facts

Google Nest Temperature Sensor (2nd gen) facts

How facts are sourced: every cell cites its source below
FactValue
StatusCurrent[1]
List price$39.99[1] as of Price for a single sensor; a 3-pack is also sold.
Works withNest Learning Thermostat (4th gen), Nest Learning Thermostat (3rd gen), Nest Thermostat E[1]
MeasuresTemperature only[1]
Released2024-08-20[4] (Announced 2024-08-06 alongside the Nest Learning Thermostat (4th gen), which includes one in the box.)
RadioBluetooth LE[1]
PowerOne CR2 3 V lithium battery, up to 3 years[1]
LimitUp to 6 per thermostat and 18 per home[1]
AppGoogle Home app or Nest app[1]

Integration paths

How the Google Nest Temperature Sensor (2nd gen) connects

1 pathHow facts are sourced: every cell cites its source below
PathRequiresiLocaliFeatures lostPlatformsi
Proprietary + hubHUBCompatible Nest thermostat, Google Home app[1]unknownunknown
About these columns
Requires
Hardware the path needs beyond the device and a controller.
Local
Yes when control on this path keeps working with the internet down.
Platforms
The platforms that work with the device on this path: Native (out of the box), Via integration (needs an add-on) or Not supported.

Home Assistant and Homey

Ways to add the Google Nest Temperature Sensor (2nd gen)

2 routesHow facts are sourced: every cell cites its source below
PlatformLeveliIntegrationDetailsEvidenceLimitations
Home AssistantNot supported[2][3]nestProprietary + hub
  • Quality: No score[2][3]
  • IoT class: Cloud Push[2][3]
  • Works with Home Assistant: Not certified[2][3]
Product line namedNone stated
HomeyCommunity app[5]com.eyecatch.googlenest.starlingProprietary + hub
  • App: Community[5]
  • Runs on: Homey Pro[5]
Product line namedNone stated
About these columns
Level
How the device gets into the platform on this route. The headline is the best route: local before cloud, direct before bridged, core before community. The methodology page lists every level.

Releases

  1. 2024
    1. Announced [4]
    2. Released [4]

      Availability date given for the Nest Learning Thermostat (4th gen) bundle.

Cite this page

Google Nest Temperature Sensor (2nd gen). Smart Home Canon. https://smarthomecanon.com/devices/google-nest-temperature-sensor-2nd-gen. Last checked 2026-10-20.

Sources

  1. [1]
    MFRstore.google.com / Google Store (US): Nest Temperature Sensor (2nd gen) specs and compatibility
    Accessed Back to text
  2. [2]
    DOChome-assistant.io / Home Assistant: Google Nest integration
    Accessed Back to text
  3. [3]
    MFRdevelopers.google.com / Google Nest Device Access: supported devices
    Accessed Back to text
  4. [4]
    MFRblog.google / Google blog, 6 Aug 2024: The Nest Learning Thermostat is smarter and sleeker than ever
    Accessed Back to text
  5. [5]
    DOChomey.app / Homey App Store: Starling Home Hub
    Accessed Back to text