Best Smart Thermostat with Room Sensors

Smart thermostats usually have built-in sensors for detecting a temperature change around them. As a result, they can regulate the home temperature better based on your selected temperature setting and the temperature change. But these smart home devices don’t efficiently detect a temperature change in other rooms.

And this poses a challenge in regulating the temperature in other rooms. But with room sensors in those other rooms, your smart thermostat excellently detects a temperature change for efficient temperature control. As such, consider adding room sensors to your smart thermostats and put them in other rooms.

The good news is that you can find smart thermostats with room sensors for other rooms. And that’s what this article will cover – smart thermostats with room sensors. You can then place the sensors in bedrooms and the kitchen (or any other room) to customize the temperature of each room for unmatched comfort. So, be sure to read on for more information as we also delve into smart thermostat buying tips.

What Are Some of The Best Smart Thermostats with Room Sensors?

Ecobee4 Smart Thermostat with Built-In Alexa

This Ecobee4 smart thermostat comes with only one room sensor. But the room sensor does incredibly well to monitor the temperature of the room you’ve placed it in for efficient comfort customization. But with only one room sensor, you might want to put the room sensor in the room that matters the most.

What’s more, the room sensor also doubles up as an occupancy sensor. What this means is that it detects if someone is in the room. And if the room is unoccupied, it instructs the smart thermostat to turn the heat down to save you money since the HVAC system will not heat the unoccupied room.

Besides ensuring your heating and cooling system uses less electricity, this smart thermostat is feature-packed for efficient temperature control. It easily connects to your home Wi-Fi network to grant you remote control over it via the ecobee app. Not only that, but it also works with various voice assistants to allow you to control it by voice commands.

Besides having built-in Alexa, the smart thermostat also works with voice assistants such as Apple HomeKit and Google Assistant for hands-free control by voice. Installation takes only 30 minutes, and you can do it yourself. But before installing it somewhere on your beautiful wall, you should know you will require a c wire to power it up. If your home has no C-wire, use the power extender to connect this device to a wall outlet.

One room sensor.You only get one room sensor.
It saves 23% of energy.Incompatible with some HVAC systems.
Remote control.
Best Smart Thermostat with Room Sensors Reviews

Honeywell Home RCHT9610WFSW2003 T9

This Honeywell Home T9 smart thermostat also comes with one room sensor. The room sensor does incredibly well to let you know the temperature in the room you’ve placed it inside. You can then regulate the room’s temperature better to eliminate cold spots.

Unlike the smart thermostat that requires power from a C-wire or a power extender, the smart room sensor requires battery power. And this ensures it functions round the clock to monitor the temperature and communicate the data to your smart thermostat.

It is impressive how this smart room sensor works with your smart thermostat up to a range of 200 feet. Away from the excellent room sensor, this smart thermostat has smart features for efficient air conditioning. It is a dual-band smart thermostat that can connect to Wi-Fi 2.4GHz and 5GHz for reliable remote control.

This smart thermostat works with voice assistants such as Amazon Alexa and Google Assistant to control it however you like through voice commands. Besides measuring the temperature, it also measures the indoor humidity, making it a dual-function smart home device.

It boasts a smart learning capability to automatically adjust the temperature the next time you’re using it. It holds up well and is a smart thermostat you might want to consider.

One room sensor.It only includes one room sensor.
Remote control.The power source is corded.
Dual-band Wi-Fi connectivity.
Best Smart Thermostat with Room Sensors Reviews

Ecobee Inc. EB-STATe3-02 Smart Wi-Fi Thermostat

If you’re looking to customize the comfort while saving money as you get value for your money, this Ecobee3 Lite smart thermostat will pull the trick. It comes with one room sensor that you will place in a room that matters the most, like a bedroom.

You can then be sure to receive smart alerts and reminders if the temperature drops below your selected temperature setting. And you can then select a new temperature setting from the room to achieve your ideal home comfort. So, the room sensor works excellently to ensure you have all the comfort you need.

The design is marvelous as the display lights up when you’re nearby so that you see the temperature setting you selected. Not only does the display show the set temperature, but it also shows the 5-day weather forecast. And since it is a Wi-Fi thermostat, it connects to your home Wi-Fi network for remote control via the ecobee app.

You also have various voice assistants to control it by voice. Some of the voice assistants it excellently works with are Amazon Alexa, Apple HomeKit, and Smartthings, to mention a few. But you need to check compatibility with voice assistants to ensure it works with your preferred voice control. But all in all, you can be sure to enjoy energy-saving performance if you opt for this Ecobee3 Lite smart thermostat. As such, it is worth consideration.

One room sensor.You only get one room sensor.
It supports various voice assistants.Unresponsive customer support.
Energy usage report.
Best Smart Thermostat with Room Sensors Reviews

Honeywell Home T9 WIFI Smart Thermostat

This programmable thermostat by Honeywell also comes with a room sensor. one room sensor might not be ideal for larger homes. So, you want to consider adding more sensors if you have a large home. Besides, adding more sensors will mean each room will have its room sensor for efficient temperature control and monitoring.

The room sensors could double up as motion sensors since they detect family members’ presence by picking up motion from them. As a result, your smart thermostat will separate unoccupied rooms from occupied ones for energy-saving HVAC system control.

Aside from the room sensors, this smart thermostat also boasts excellent smart features to allow you to heat or cool your home excellently. The first feature is the straightforward remote control via a mobile app. And this is possible since this smart thermostat connects to your Wi-Fi 2.4GHz and 5GHz.

Also, you could control it by voice as it works with virtual assistants such as Amazon Alexa, Google Assistant, Smartthings, and Apple HomeKit. Therefore, you have more voice control options for hands-free control. It is also easy to install, and the whole process takes only 30 minutes.

Usually, you will require a C wire to power up this smart home device. But if your home has no C-wire, you can use the power extender kit to ensure it is sipping enough juice from your wall outlet. It is an excellent smart thermostat that could transform your comfort. Therefore, it is worth considering.

It includes one room sensor.You only receive one room sensor.
Remote control.It is incompatible with some HVAC systems.
It supports various voice controls.
Best Smart Thermostat with Room Sensors Reviews

How To Buy the Best Smart Thermostats with Room Sensors

When picking the best smart thermostat for your smart home, you will keep a closer eye on a few smart features. And they include the following:

Digital Color Touchscreen

Smart thermostats are gaining the trust of their users every day with their robust smart features. While you can access all these smart features via the mobile app on your phone, you might want to manually interact with your smart thermostat.

A digital color touchscreen ensures you can easily access the smart features, and this is why you need to consider it. The Honeywell RCHT9610WFSW2003 smart thermostat has a touchscreen display that also shows the humidity level besides showing the temperature setting. Therefore, it is an ideal smart thermostat for easy manual control.


Smart thermostats with this smart feature can know where you are at any given time. They use their companion mobile app on your smartphone and the phone’s GPS service to pinpoint your location. Then, they can turn down the heat if you’re away and turn it up again if you’re at home.

Therefore, this smart feature helps you save energy, and this is a reason for ensuring your preferred smart thermostat has it. So, consider hunting for smart thermostats with geofencing if you want an energy-saving performance from your smart home device.

Home/Away Mode

Some smart thermostats have built-in sensors to know if someone is at home or everyone has left. As a result, they reduce the heating process to save you energy. The Home/Away smart feature can detect people from feet away, allowing the smart thermostat to maintain the temperature control you had selected.

And if it detects that no one is at home, it allows the smart thermostat to lower the temperature to an Eco-friendly level, saving you money, as we’ve mentioned already. Therefore, consider smart thermostats with Home/Away Mode when picking smart thermostats for your residential space.

Room Sensors

Room sensors are accessories for sensing temperature changes in the rooms you have placed them inside. Although smart thermostats have built-in sensors for detecting a temperature change, they can only detect the temperature change of the surrounding air. And this means your smart thermostat will not efficiently detect a temperature change in other rooms. As such, you want to add room sensors to your smart thermostat and place them in other rooms.

You will then receive temperature change alerts and customize the comfort in those colder rooms. So, buy room sensors and add them to your smart thermostat. Even better, buy smart thermostats with their room sensors. And if your smart thermostat comes with only one room sensor, consider adding more to control the temperature efficiently.

Energy Usage Report

A smart thermostat that tracks energy usage can be quite helpful in knowing how much energy your HVAC system consumes. You will then know how to control the temperature better to save more energy. As such, pick a smart thermostat with an energy usage report if you want to save energy and pay less in energy bills.

Dual-Band Wi-Fi Connectivity

Smart thermostats connect to the Wi-Fi network to grant you remote control over them via a mobile app. Also, you could control them using voice control devices connected to the same Wi-Fi network as them. As such, Wi-Fi connectivity is a significant factor you will consider when picking a smart thermostat.

But smart thermostats only connect to certain Wi-Fi frequencies, with 2.4GHz being the common frequency. So, you want to consider your Wi-Fi frequency before picking a smart thermostat. The good news is that some smart thermostats connect to two frequencies at a time (2.4GHz and 5GHz). These are the devices you want since they connect to more Wi-Fi frequencies. And this makes them have a more efficient remote control. Therefore, consider smart thermostats with dual-band Wi-Fi connectivity.

Smart Alerts

Besides sensing temperature changes and adjusting the temperature to your liking, smart thermostats could also sense other air conditions like humidity. You can then adjust the humidity for more respiratory comfort. What’s more, these smart home devices can also alert you if the temperature is rising or falling below your preferred temperature setting.

Smart alerts will reach you via the smart thermostat’s mobile app. If you want to keep your home as comfortable as possible and stay ahead before the temperature and humidity deviate from your preferred levels, pick a smart thermostat with smart alerts. You will have time to adjust the temperature and humidity for more comfort.

HVAC Compatibility

Smart thermostats work with limited HVAC systems. And this means they are incompatible with other HVAC systems. As such, you want to pick a smart thermostat that is compatible with your heating and cooling system. Check your preferred smart thermostat and read the listed compatible HVAC systems. If your HVAC system is among the listed HVAC systems, you can buy the smart thermostat.

Power Source

Smart thermostats also need electricity to function. But they’re not like most smart home devices since many of them require a C wire to function. With this in mind, you want to ensure your smart home has a C-wire for powering a smart thermostat.

Even if your smart home has no C-wire, you could still use a power extender kit to connect your smart thermostat to the wall outlet. So, consider opting for smart thermostats with this power extender if you have no C-wire.

Also, some smart thermostats use batteries to function. They also work efficiently but don’t work with some HVAC systems, especially high-voltage electric baseboard heaters. So, you want to consider the power source and ensure your smart thermostat works with your HVAC system.

Compatible Voice Control Devices

You can also control a smart thermostat by the sound of your voice if you have paired it with a voice control device. But as you might expect, smart thermostats only work with certain virtual assistants. So, you want to ensure a smart thermostat is compatible with your preferred voice control device before picking it.

Some of the common virtual assistants for controlling smart thermostats by voice include Alexa, Siri, and Google Assistant. Consider buying smart speakers with these virtual assistants to use your voice to control your smart thermostat.


What is dual-band connectivity?

Smart thermostats that support Wi-Fi 2.4GHz and 5GHz are dual-band smart thermostats since they connect to two Wi-Fi frequencies. They grant you a more efficient remote control over them since they use any frequency to control your HVAC system. As such, they should be your go-to smart thermostats.

What functions does a room sensor perform?

Room sensors detect a temperature change in the rooms you have placed them inside. Then they let the smart thermostat know the margin by which it should regulate the temperature to match your preferred temperature setting.

Also, some room sensors double up as occupancy sensors to detect unoccupied rooms. Your smart thermostat will then turn down the heat in those rooms to save energy. Therefore, room sensors have two functions to perform, and you should consider adding them to your smart thermostat.

How does Home/Away Mode work?

Smart thermostats have sensors to know if someone is at home or if everyone has left. The Home mode knows if someone is at home, allowing the smart thermostat to maintain the set temperature. On the other hand, the Away mode knows if no one is at home. As a result, the smart thermostat will turn down the heat to an Eco-friendly level to save energy and the environment.

What do I do if my smart home has no C-wire?

More often than not, smart thermostats will require a c wire to function. But some smart homes have no C-wire. In these cases, a power extender kit will function. It provides low-volt electricity to a smart thermostat, allowing it to function excellently. So, you can use a power extender kit to power your smart thermostat if you have no C wire in your smart home.

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Wrap Up

Room sensors exponentially increase the efficiency of smart thermostats. Not only do they sense temperature changes, but they also serve the function of occupancy sensors. As such, they perform two functions, all of which improve the smart thermostat’s performance.

Therefore, you want to add room sensors to your smart thermostat. Even better, you want to pick a smart thermostat that comes with its room sensor. Fortunately, finding a smart thermostat with a room sensor is not a challenge since we have presented you with a few smart thermostats that might be best for you. Also, we have included a buyer’s guide to help you find other best-working smart thermostats. So, find the best smart thermostat and control your home’s comfort with unmatched convenience and efficiency.

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