Smart thermostats are a fantastic way to heat, cool, and monitor your home all form your iPhone or iPad. They have been on the market for years, and they keep getting better and better; however, ecobee consistently comes out on top when talking about the best smart thermostats. A big reason ecobee comes out on top is thanks to its room sensors.

What are ecobee room sensors?

ecobee room sensors are an additional accessory that you can pair with your ecobee smart thermostat which allows the thermostat to know the temperature of different rooms in your house.

Not only do the room sensors detect temperature, but they also have motion sensors so it can tell when somebody is in that room.

Why are room sensors so useful?

When you install a smart thermostat and set the temperature, the thermostat is only sensing the area around it. So while it may be 70 degrees in your main floor hallway where the thermostat is, the guest bedroom upstairs could be 75 degrees. These hot or cold spots in your house can be annoying, and make being in certain rooms uncomfortable.

Room sensors allow you to see the temperature in every room you put them in, meaning you have a better idea of what the temperature is over your whole house.

How do room sensors work?

Most houses don't have automatic dampers on their HVAC system, meaning when the heat or the AC goes on it will pump through the entire house. ecobee knows this is the case, and one of the main functions of the room sensors is to allow the thermostat to average the temperature in your house to try and combat those hot and cold spots.

Say you place a room sensor in your home office, and it's currently 73 degrees, but your smart thermostat in the front entrance is reading 70. Your ecobee smart thermostat will attempt to heat or cool your house to approximately 71 degrees as a middle ground. The more room sensors you have — which you can pair up to 32 with one thermostat — the more information your ecobee thermostat has to calculate a comfortable average.

On top of averaging, the room sensors also enable the "Follow Me" feature. This feature is used to detect the temperature in the rooms that are occupied. If you're in the living room and then decide to retire to your bedroom for some late night Netflix before bed, as long as you have room sensors in both rooms, ecobee will do its best to make sure the temperature is at the proper setting (as set by you) wherever you roam.

Of course, like any thermostat — smart or not — these room sensors can be heavily customized based on a schedule. So you can heat or cool your home at the precise times you want to and not waste energy when you're not in the house.

How much do they cost?

On their own, a 2-pack of the ecobee room sensors cost $79 on Amazon. So if you already have an ecobee3 or ecobee4 smart thermostat, you'll need to buy the sensors.

Of course, if you don't have an ecobee smart thermostat already, you'll need to get one. The good news is the ecobee4 comes with a room sensor in the box to get you started, but if you want to buy more you'll those will be an extra cost. The ecobee4 thermostat with a room sensor costs about $249.

See ecobee Room Sensors at Amazon

See why the ecobee4 is the best smart thermostat for 2018

HomeKit

Main

HomeKit

This post may contain affiliate links. See our disclosure policy for more details.

Latest And Best Prime Day Deals

It might be Prime Day, but this Instant Pot deal is available to everyone
Instant Pot 3-Quart Duo Mini Pressure Cooker
$39.95 $65.00 Save $25

This 3-quart multi-cooker is perfect for smaller households or serving sizes, and today's deal beats the others we've seen.

Unlock voice control with Echo device deals and $5 Amazon smart plugs
Amazon Echo devices bundled with $5 smart plugs

Amazon's Smart Plug lets you start voice controlling anything plugged into it by asking an Alexa-compatible device, and today's deal lets you snag one for only $5 with purchase of select Echo devices.

Be more productive with a year of Office 365 Home and a free $50 Amazon gift card
Office 365 Home 12-month subscription and $50 Amazon gift card
$99.99 $150.00 Save $50

The subscription works with up to six people, but that card can be all yours.

Amazon's Fire TV Cube is down to just $70 thanks to this Prime Day deal
Amazon Fire TV Cube
$69.99 $119.99 Save $50

Grab TCL's 32-inch 720p Roku TV for less than $100 in this Prime Day Lightning deal
TCL 32S325 32-inch 720p Roku TV
$99.99 $130.00 Save $30

Act fast while you can. These Lightning deals tend to sell out quick.

The Ring Alarm security system is reaching new low prices for Prime Day
Ring Alarm home security systems

Various configurations of the Ring Alarm are discounted to their best prices yet exclusively for Prime members at Amazon through Tuesday night to help keep your home secure.

The Sonos Beam Prime Day deal includes a $40 discount and 2 $50 Amazon gift cards
The Sonos Beam Prime Day deal includes a $40 discount and $100 in Amazon gift cards
$359.00 $499.00 Save $140

That's just so much savings in one deal. You'll have to wait for the physical gift cards, but that's basically $100 to spend however you want.

Prime Day dropped this PlayStation 4 console bundle to just $250
PlayStation 4 Slim 1TB console with Marvel's Spider-Man and Horizon Zero Dawn
$249.99 $359.98 Save $110

This deal on the PlayStation 4 Slim console saves you $50 off its regular price while also including Marvel's Spider-Man and Horizon Zero Dawn Complete Edition for free. You'll just need an Amazon Prime membership to snag it.

More Prime Day Deals