Nest thermostat information menu

The Home or Nest app can give you basic information about your thermostat such as the model, serial number, software version, and other details.

Use your thermostat to check more detailed information that may not available in the app.

If you donâ€™t find what you want below, go to Nest thermostat technical specifications for information on power consumption, certifications, dimensions, and more.

Home app or Nest app

Home app

Open the Google Home app
Tap Favorites or Devices .
Tap your thermostat Settings Device information.

Nest app

Tap your thermostat on the app home screen.
Select Settings Technical Info.

Device information or Technical Info

Name	The name youâ€™ve given your thermostat Change the device name in the Home app
Home	The name of the home that your thermostat has been added to in the app
Room	The room in your home that your thermostat has been assigned to (such as kitchen or hallway)
Model	The model of your thermostat
Device ID	Your thermostat display's unique ID number (available only on certain thermostats)
Serial no.	A unique identifier located at the back of your thermostatâ€™s display.
Software version	The software version currently installed on your thermostat Nest thermostat software update history
Wi-Fi MAC	The unique network ID assigned to your thermostat hardware when it was manufactured
IP	Your thermostatâ€™s network IP address, which is assigned by your router. You can also check the thermostatâ€™s IP address on your Wi-Fi routerâ€™s list of connected devices.
Battery state	Nest Thermostat only: the charge level of the replaceable AAA batteries: Unknown, OK, Low, or Very low
Battery voltage	The current voltage of your thermostatâ€™s internal rechargeable battery

On your thermostat

Press the thermostat ring to bring up the Quick View menu.
Turn the ring to Settings and press to select.
Turn the ring to Technical Info and press to select.

There are a few different sections with information about your Nest thermostat's sensors, Wi-Fi network, thermostat's serial and model numbers and much more. Below is a list of what you'll find on your thermostat.

Note: You might not see every section listed below on your thermostat. The available information varies based on which Nest thermostat you have.

Power

Battery	This is the current voltage of your thermostatâ€™s internal rechargeable battery. The voltage will fluctuate, but it should be higher than 3.6V when itâ€™s charging normally. If your thermostat isnâ€™t receiving enough power to charge the battery and it falls below 3.6V, your thermostat will turn off Wi-Fi, delay software updates, and disable the screen to preserve the battery charge and delay shutting down completely. 3.7V is required to install a software update. 3.6V is required for the display to turn on when you approach.
Voc Vin Iin	Voc, Vin, and Iin measure the electrical current sent over your systemâ€™s wires to your thermostat. Below are the ranges that the Voc, Vin and Iin should stay in during normal operation. There are different Vin and lin values if you have a common or C wire in your thermostat: Nest Thermostat with or without C wire Voc: 29 to 42V Vin: 29 to 42V lin: 200 to 385 mA Nest Learning Thermostat/E with C wire Voc: 29 to 42V Vin: 29 to 42V lin: 100 to 200 mA without C wire or with Power Connector Voc: 29 to 42V Vin: 29 to 42V lin: 20 to 40 mA Troubleshooting power issues If your thermostatâ€™s power is outside of the above specifications, you may need to troubleshoot. For example, if your Nest thermostat wonâ€™t turn on and is unresponsive, or there's a blinking red light at the top of the thermostatâ€™s screen, your thermostat likely isnâ€™t getting enough power. For troubleshooting, go to the Nest thermostat troubleshooter and select Power issue. Troubleshooting when your thermostat wonâ€™t turn on

Battery

This is the current voltage of your thermostatâ€™s internal
rechargeable battery. The voltage will fluctuate, but it should be
higher than 3.6V when itâ€™s charging normally.

If your thermostat isnâ€™t receiving enough power to charge the
battery and it falls below 3.6V, your thermostat will turn off Wi-Fi,
delay software updates, and disable the screen to preserve
the battery charge and delay shutting down completely.

3.7V is required to install a software update.
3.6V is required for the display to turn on when you approach.

Voc Vin Iin

Voc, Vin, and Iin measure the electrical current sent over your
systemâ€™s wires to your thermostat. Below are the ranges that
the Voc, Vin and Iin should stay in during normal operation.
There are different Vin and lin values if you have a common or C
wire in your thermostat:

Nest Thermostat

with or without C wire

Voc: 29 to 42V
Vin: 29 to 42V
lin: 200 to 385 mA

Nest Learning Thermostat/E

with C wire

Voc: 29 to 42V
Vin: 29 to 42V
lin: 100 to 200 mA

without C wire or with Power Connector

Voc: 29 to 42V
Vin: 29 to 42V
lin: 20 to 40 mA

Troubleshooting power issues

If your thermostatâ€™s power is outside of the above specifications, you
may need to troubleshoot. For example, if your Nest thermostat
wonâ€™t turn on and is unresponsive, or there's a blinking red
light at the top of the thermostatâ€™s screen, your thermostat likely
isnâ€™t getting enough power. For troubleshooting, go to the Nest thermostat troubleshooter and select Power issue.

Troubleshooting when your thermostat wonâ€™t turn on

Network

Wi-Fi	Here youâ€™ll find the name of the Wi-Fi network your thermostat is currently connected to, and the network PING (measured in milliseconds). The signal strength has a maximum value of 100. A signal strength of 75 is considered strong, while a value of 36 or lower is considered weak. You can use the signal strength to help troubleshoot offline issues with your thermostat. Try moving your Wi-Fi router or extender to check if the signal strength has improved. Note: If disconnected from Wi-Fi, it will show "Client not connected."
Security	This shows you what type of security your Wi-Fi network is using: WPA, WEP, etc.
Interface	This tells you the Nest thermostat's Wi-Fi network interface which is typically "wlan0."
IPv4
Address	This is your Nest thermostatâ€™s network IP address, which is assigned by your router. You can also find the the thermostatâ€™s IP address on your Wi-Fi routerâ€™s list of connected devices.
Subnet mask	A subnet mask is used to identify the network location of an IP address. Most home networks use the default subnet mask 255.255.255.0.
Router	This is the network IP address of the router that your Nest thermostat is connected to.
IPv6
Address	This is your thermostatâ€™s IPV6 network address, which is used for Thread communications.
Prefix length	Similar to an IPv4 Subnet Mask, an IPv6 Prefix length is used to identify the network section of an IPv6 address.
Router	This is the IPv6 address of the router that your Nest thermostat is connected to.
Name servers	This tells you the address of the Domain Name System (DNS) server and backup DNS server used by your thermostat.
Search domains	This is used if your Nest thermostat needs to resolve an unqualified domain name. If not, it'll show "none."
Service Environment	For most people it'll show "production." If you are participating in the Nest Field Test program, it'll show "ft."
Last data upload	The exact date and time of your thermostatâ€™s last automatic data upload to the Nest service. For more information, go to privacy FAQ.
Last cloud comm	The exact date and time of your thermostatâ€™s last communication with the Nest service. This syncs your Nest thermostat and the app so they can show you the same information.
MAC address	This is the unique network ID assigned to your Nest thermostatâ€™s network hardware when it was manufactured.

Sensors

Current temp	The current ambient temperature in the room determined from the Nest thermostatâ€™s internal sensors. The temperature is also displayed on the thermostat's temperature screen.
Target temp	The temperature set on the Nest thermostat that the system is currently trying to heat or cool to.
Rel. humidity	The relative humidity in the room measured by the Nest thermostatâ€™s internal sensors.
Activity	This shows status information about the activity and light sensors in the Nest thermostat. Note: A sensor can be working normally and show a reading of 0.

Equipment

Equipment sensed on	This shows which terminals on the Nest thermostat base have wires in them. This is determined by the physical position of the terminal button, not by wire voltage. Troubleshooting: If the wires listed here don't match what wires are actually in the thermostat terminals, check that the wires are fully inserted and that the terminal button stays down. Also check that there isn't anything (such as a broken wire end) jamming any of the terminals.

Equipment sensed on

This shows which terminals on the Nest thermostat base
have wires in them. This is determined by the physical position
of the terminal button, not by wire voltage.

Troubleshooting: If the wires listed here don't match what wires
are actually in the thermostat terminals, check that the wires
are fully inserted and that the terminal button stays down.
Also check that there isn't anything (such as a broken wire end)
jamming any of the terminals.

Display

Where	The location name given to your Nest thermostat during setup. Note: You can change the name by going to Settings Where on the thermostat or with the app.
Software version	This shows the software currently installed on the Nest thermostat. Nest thermostat software update history
Model	The model number of your Nest thermostat display. This varies between different models and generations of Nest thermostats.
Serial number	Your Nest thermostatâ€™s display has a unique serial number.
Device ID	A device ID thatâ€™s unique to your display.
Unlocked	This shows if your thermostat is locked or unlocked.
Time Zone	The time zone for the Nest thermostat is based on the ZIP code entered during setup.

Base

Model	The model of your Nest thermostat base.

Was this helpful?

How can we improve it?