The Nest Temperature Sensor is a small accessory that solves a big problem: your Nest Thermostat can only heat or cool based on the temperature right where it’s mounted, and that’s rarely the room where you spend most of your time. If your thermostat sits in a hallway while your bedroom runs warm at night or your living room camera setup shares space with a drafty window, this puck lets you shift control to wherever comfort matters most.
A house rarely holds one temperature. A north-facing bedroom can run five or six degrees cooler than a sun-drenched living room on the same afternoon, and a thermostat mounted in a hallway between the two has no way of knowing which reading to trust. The Nest Temperature Sensor exists to close that gap by letting the thermostat borrow its data from a room you occupy instead of the room it happens to be bolted to.
This guide covers how to mount a Nest Temperature Sensor, where to place it for the most accurate readings, and every mounting method available, from the included screw to a no-drill wall bracket.
What the Nest Temperature Sensor Does
Once paired through the Google Home or Nest app, the sensor reports the temperature from its location back to your Nest Thermostat, which then heats or cools based on that reading instead of its own built-in sensor. You can assign different sensors to different schedules: the bedroom sensor at night, the living room sensor during the day, all managed from the app.
It works with the Nest Thermostat E and the Nest Learning Thermostat, third generation and newer. The fourth generation Nest Learning Thermostat ships with a second generation sensor already in the box, so check before buying an extra one if you just picked up a new thermostat.
Each sensor runs on a single CR2 lithium battery that typically lasts around two years under normal use. The Nest app will notify you when the battery is running low, and swapping it is as simple as popping the sensor off its mount, sliding open the back cover, and replacing the cell. This is one reason a mount you can remove without tools, rather than a permanently screwed-down one, tends to be more convenient over the life of the sensor.
Setting It Up
Before mounting anything permanently, let the sensor sit unmounted in its intended spot for a week or two. This confirms the placement works before you commit to a screw hole or adhesive. Here’s the setup process:
- Open the Google Home app or Nest app and tap Add Device.
- Scan the QR code on the battery pull tab, or open the back of the sensor to find the code if the tab is already removed.
- Pull the battery tab to activate the sensor.
- Choose the room and thermostat to associate it with. The app tests the connection to confirm the signal reaches your thermostat.
Where to Place It
Placement affects accuracy more than most people expect. A few rules to follow:
- Chest height. Air temperature varies from floor to ceiling, warmer near the top and cooler near the floor. Chest height reads closest to the temperature you feel while sitting or standing in the room.
- A room you live in. The sensor earns its keep in a bedroom, living room, or home office, not a hallway, bathroom, or utility closet.
- Away from heat sources. Vents, radiators, direct sunlight through a window, and appliances all skew the reading and cause your system to over- or under-run.
- Open air, not tucked away. Don’t hide it behind furniture or inside a cabinet. It needs circulation to read the room accurately.
Using Multiple Sensors Across Rooms
Most households get the most value out of the Nest Temperature Sensor by placing more than one. A common setup uses a bedroom sensor on an evening and overnight schedule and a living room or home office sensor for daytime hours, so the thermostat automatically hands off control as the day moves along. You can assign this in the Nest app under the thermostat’s schedule settings, picking which sensor is active for each time block.
This is also where mounting choice starts to matter more. A sensor you’re testing in a new room benefits from a mount you can peel off and reposition without patching drywall, while a sensor in its permanent spot can go with whichever method matches your wall and your patience for tools.
Nest Temperature Sensor Mounting Options
Here’s how the main mounting methods compare before you commit to one.
| Mount | Best For | Install Type |
|---|---|---|
| Teccle Wall Mount | Renters and no-drill installs on any smooth surface | Adhesive, no tools |
| Included Mounting Screw | Permanent wall placement | Screw, wall anchor optional |
| Command Strips Variety Pack | Reversible, damage-free mounting | Adhesive, no tools |
| Shelf or Table | Anyone with a surface already in the right spot | No installation |
Option 1: Shelf or Table
If a shelf or end table already sits in the right spot, this is the easiest path. Set the sensor down, pull the battery tab, and you’re finished. No drilling, no hardware, no commitment to a wall location.
Option 2: The Included Screw
The sensor ships with a mounting screw that aligns with a slot on the back of the device. Drive the screw into the wall, using a wall anchor if you’re not hitting a stud, then slide the sensor onto it. Nest’s screws are self-tapping, so most drywall installs won’t need a pilot hole. Tile or brick may be the exception.
Option 3: Adhesive Strips
If you’d rather skip the screw entirely, a Command Strips Variety Pack works well on the back of the sensor. It holds securely to most smooth surfaces and comes off cleanly later, which makes it a solid choice for renters or anyone who wants a reversible install. It’s the same approach that works for other small sensors, including a SimpliSafe Entry Sensor.
Option 4: The Teccle Wall Mount
This is the cleanest dedicated solution built specifically for the Nest Temperature Sensor. The Teccle Wall Mount is a stainless steel adhesive plate with a peg that lines up with the mounting slot on the back of the sensor. Stick it to any clean, dry, smooth surface, wall, cabinet, glass, or metal, and hang the sensor on it. No screws, no tools, no holes left behind if you move it later. It works with both the first and second generation sensor, and it’s built for the exact use case rather than repurposed from something else.
How to Choose the Right Mount
If you’re renting or just don’t want to commit to a wall location yet, start with a shelf or table placement and confirm the reading is accurate for a week before mounting anything. Once you know the spot works, the Teccle Wall Mount is the cleanest permanent-feeling option that still leaves no damage behind, and its stainless steel plate holds up better over time than a strip of adhesive foam.
If you already keep Command Strips around the house, they work fine as a lower-cost substitute, though they’re rated for less repeated removal and reattachment than a purpose-built bracket. The included screw only makes sense if you’re certain about the location and don’t mind a small hole if you ever move the sensor down the road.
Worth noting: whichever method you choose, the mount only has to hold the sensor in place. It doesn’t affect the accuracy of the reading itself, so this is entirely a decision about your wall, your lease, and how often you expect to reposition the sensor rather than a decision that changes performance.
FAQ
How many Nest Temperature Sensors can I use?
The Nest Learning Thermostat supports up to six sensors, and the Nest Thermostat E supports up to three.
Does the sensor need to stay plugged in?
No. It runs on a single battery and communicates wirelessly with the thermostat.
Will adhesive mounts damage paint when removed?
Quality adhesive strips and the Teccle Wall Mount are designed to come off cleanly from most painted surfaces when removed slowly and at a low angle. Test on an inconspicuous spot first if you’re unsure about your paint.
Can I mount a Nest Temperature Sensor near a window?
Only if it’s out of direct sunlight. Direct sun will heat the sensor itself and throw off the reading, even if the room is comfortable.
