Smart Home Fit
8/10
Google - Nest Temperature Sensor (2nd gen) 1-pack - Porcelain
Ideal for managing home temperature with Google Home integration.
Starting at
$39.98
Updated Mar 19 · Price may vary. Check Amazon for exact price.
Works With
The Nest Temperature Sensor (2nd gen) is a solid, easy-to-use option for Nest thermostat owners seeking better room-by-room temperature control but falls short for those wanting broader compatibility or advanced sensor features.
The Google Nest Temperature Sensor (2nd gen) is designed to work exclusively with Nest thermostats, allowing you to monitor temperature in different rooms and prioritize heating or cooling based on sensor location. It excels in providing more accurate temperature readings for multi-room homes, especially if your thermostat is located in a spot that doesn’t represent the overall home temperature well. Setup is straightforward and it integrates seamlessly with the Google Home ecosystem. However, it has notable limitations: it only works with Nest Learning Thermostat (3rd gen) and Nest Thermostat E, so if you have other smart thermostats like Ecobee or Honeywell, this sensor is useless. Also, it doesn’t have a display or controls and relies entirely on the thermostat for adjustments. Battery life is decent, typically lasting about 2 years on a CR2 battery, but replacement is not rechargeable. This sensor is perfect for users deeply invested in the Google Nest ecosystem who want to optimize comfort room-by-room without rewiring or adding complicated hardware. On the other hand, if you want a sensor with more standalone features, or compatibility with other brands, or if your home relies heavily on manual HVAC controls, this isn’t the best choice. For example, if you want to control fan speed or humidity sensing, competitors offer more robust options. Overall, it’s a solid add-on for Nest users but limited outside that niche.
7
Value
9
Setup
7
Reliable
6
App
8
Ecosystem
- Easy setup
- Long battery life
- Compatible with Nest thermostats
- Not compatible with Alexa or HomeKit
- Requires Google Home app
The right temp in just the right spot - Meet the Nest Temperature Sensor (2nd gen). Now it’s easy to manage hot and cold spots throughout your home. Just put it in your preferred room and get the right temp, right where you want it. It’s battery powered, so you can set it, then forget it’s even there.¹
Connectivity
Requires Hub
Google Nest Hub
Works only within Google ecosystem; no support for Alexa or HomeKit
Compared to the Ecobee Room Sensor, the Nest Temperature Sensor is simpler and cheaper but lacks motion detection and humidity sensing, which Ecobee includes for more advanced HVAC adjustments. The Honeywell Home T9 Sensor offers similar multi-room sensing but supports multiple HVAC brands and includes occupancy detection, making it more versatile. The Nest sensor’s main advantage is its tight integration with Google Nest thermostats and Google Home, but if you want cross-brand compatibility or more features, Ecobee or Honeywell are better picks despite higher prices and more complex setup.
Installation is very straightforward with a difficulty rating of 1 out of 5. It typically takes under 10 minutes to set up via the Google Home app with no tools required since it’s battery-powered and wireless. The main common issue is ensuring your thermostat firmware is up to date for compatibility. Professional installation is not necessary.
Users report reliable temperature readings and smooth integration with Nest thermostats, with response times typically under a minute for temperature adjustments. The app experience is simple but limited since the sensor doesn’t have its own interface; all controls are through the Nest thermostat app. Battery life is generally good, lasting around 2 years per CR2 battery, though some users note occasional connectivity drops if placed too far from the thermostat or Wi-Fi router.
Marketing claims suggest improved HVAC efficiency by optimizing temperature control in different rooms, but real-world users typically see modest savings around 5-10%, depending on home layout and HVAC system.
- Only compatible with Nest Learning Thermostat (3rd gen) and Nest Thermostat E
- No display or manual controls on the sensor itself
- Battery replacement requires CR2 batteries, not rechargeable
- Connectivity issues if placed too far from thermostat or Wi-Fi
- Limited functionality compared to competitors with motion or humidity sensors
Consider waiting
This product has been cheaper in the past.
$24.99
Mar 15, 2026
$39.98
Jan 26, 2026
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| Date | Source | Price | Stock |
|---|---|---|---|
| Mar 19, 2026 | Amazon | $39.98$14.99 | In Stock |
| Mar 15, 2026 | Amazon | $24.99$14.99 | In Stock |
| Mar 14, 2026 | Amazon | $39.98 | In Stock |
| Mar 5, 2026 | Amazon | $39.98 | In Stock |
| Jan 26, 2026 | Amazon | $39.98 | In Stock |
Homeowners looking to optimize temperature control in multiple rooms.
Consider purchasing multiple sensors for comprehensive temperature management.
Buy this sensor only if you own a compatible Nest thermostat and want to improve temperature accuracy in specific rooms. Avoid if you want more advanced features like motion sensing or cross-brand compatibility. Pair it with multiple sensors for best results in larger homes. Don’t expect it to control HVAC directly—it only informs the Nest thermostat. Keep spare CR2 batteries handy for long-term use.
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