Smart homes are evolving fast, and with them, the devices we rely on to keep us comfortable and save energy. If you’ve been looking at Ecobee sensors, you may be wondering: What’s the difference between the Ecobee Smart Sensor and the Ecobee Room Sensor?
The Ecobee Smart Sensor and Room Sensor differ primarily in design, range, and functionality.
The Smart Sensor has a more modern, rounded design with a metal base, a longer communication range of 60 feet, and enhanced occupancy detection with pet immunity. It also has a wider viewing angle (140° horizontal, 100° vertical) and a longer battery life of up to 5 years using a CR-2477 battery.
In contrast, the Room Sensor has a square design with a plastic base, a shorter 45-foot range, no pet immunity, a narrower viewing angle (120° horizontal, 25-30° vertical), and a shorter battery life of up to 1 year using a CR-2032 battery.
The Smart Sensor also features easier pairing through the Ecobee app, while the Room Sensor requires pairing via the thermostat interface.
Smart thermostats and sensors can make a big impact, but understanding which sensor suits your home setup can be confusing. In this article, we’ll break down the similarities and key differences between these two Ecobee sensors, so you can make an informed decision for your smart home.
Comparison Of Ecobee SmartSensor And Room Sensor
I have created a comparison table outlining the key differences between the Ecobee SmartSensor and the Ecobee Room Sensor.
| Feature | Ecobee SmartSensor | Ecobee Room Sensor |
| Design and Appearance | Rounded, elegant with metal base | Square, plastic base |
| Communication Range | 60 feet | 45 feet |
| Motion Detection | Enhanced occupancy detection | Basic occupancy detection |
| Pet Immunity | Yes | No |
| Viewing Angle (Horizontal/Vertical) | 140° / 100° | 120° / 25-30° |
| Battery Life | Up to 5 years | Up to 1 year |
| Battery Type | CR-2477 | CR-2032 |
| Pairing Method | Via Ecobee app (easier) | Via thermostat interface |
| Price | $99 for a pack of two | Third-party only |
Overview of Ecobee Smart Sensors
What are Ecobee Sensors, and Why Are They Important for Smart Homes?
Smart sensors play a big role in enhancing the efficiency and comfort of smart homes, and Ecobee sensors are among the best in the market. Their primary function is to optimize heating and cooling by providing accurate data about the temperature and occupancy of specific rooms. In smart home systems, sensors act as the “eyes and ears,” constantly monitoring conditions and adjusting settings to keep the environment comfortable and energy-efficient.
Introduction to Smart Sensors
Definition and Purpose of Smart Sensors
At their core, smart sensors like Ecobee’s detect both the temperature of a room and whether anyone is present. This real-time information allows smart thermostats to make informed decisions about whether to heat or cool a room.
For example, if a sensor detects no occupancy, the thermostat can automatically reduce heating or cooling to save energy. This capability makes smart sensors a key component of energy-efficient homes.
The Role of Sensors in Improving Heating and Cooling Efficiency
The key function of smart sensors is to help balance the temperature throughout different areas of your home. Traditionally, thermostats only measure the temperature of the room they are in, which can lead to uneven heating or cooling across a house.
By placing Ecobee sensors in key areas, homeowners can target specific rooms for temperature adjustments, ensuring that the entire home is comfortable. These sensors contribute to energy savings by reducing unnecessary heating and cooling when certain rooms are unoccupied.
Key Features of Ecobee Smart Sensors
Temperature and Occupancy Detection
Ecobee sensors are equipped with both temperature sensors and occupancy detectors. The temperature sensor ensures that the room is kept at the optimal setting, while the occupancy sensor helps the system know when a room is being used.
This dual capability allows for smarter, more efficient temperature control, adjusting only when necessary and avoiding wasted energy on unoccupied spaces.
Follow Me Mode and Energy-Saving Benefits
One of the standout features of Ecobee sensors is their “Follow Me” mode. This feature allows the system to detect which rooms are being occupied and focus heating or cooling efforts there.
If you move from the living room to the bedroom, the system can lower the temperature in the living room while adjusting it in the bedroom to ensure optimal comfort. Over time, this targeted approach helps reduce overall energy consumption and results in lower utility bills.
Compatibility with Ecobee Thermostats and Home Systems
Ecobee smart sensors are compatible with the full range of Ecobee thermostats, including older models like Ecobee SmartThermostat with voice control, Ecobee4, and Ecobee3 lite.
They integrate seamlessly into the Ecobee system, allowing users to control everything from one app or device.
This compatibility extends to other smart home platforms, such as Amazon Alexa and Apple HomeKit, enabling a broader level of control and customization for homeowners who use multiple smart systems.
Ecobee Smart Sensor vs Ecobee Room Sensor: Key Differences
When it comes to choosing between the Ecobee Smart Sensor and the older Room Sensor, understanding the key differences can help you make an informed decision. While both sensors serve similar functions—detecting temperature and occupancy—there are several distinctions in design, performance, and longevity that are worth considering.
Design and Appearance
One of the most noticeable differences between the Ecobee Smart Sensor and the Room Sensor is their design. The SmartSensor features a rounded, elegant design, which gives it a more modern and sleek appearance.
This aesthetic change isn’t just cosmetic; the rounded shape allows it to blend more seamlessly into a variety of room decors. Additionally, the SmartSensor comes with a metal base, which adds durability and enhances its overall premium look.
The Room Sensor has a more square, boxy design that feels a bit dated in comparison. Its plastic base, while functional, lacks the aesthetic appeal of the newer model.
If appearance is a priority for you, especially in visible areas of your home, the SmartSensor is a clear winner in terms of design.
The SmartSensor is slightly deeper, likely due to the larger battery size. The height and width of the SmartSensor are slightly more narrow.
SmartSensor Dimensions
- Height: 40 mm (1.58 in)
- With stand: 50 mm (1.97 in)
- Width: 40 mm (1.6 in)
- Depth: 26.4 mm (1.03 in)
Room Sensor Dimensions
- Height: 44 mm (1.7 in)
- With stand: 54 mm (2.2 in)
- Width: 44 mm (1.7 in)
- Depth: 20 mm (0.8 in)
Ecobee Smart Sensor Wall Mount
Included in the design changes are how the sensors are mounted to the wall.
The Ecobee SmartSensor and Room Sensor have distinct mounting methods. The SmartSensor comes with a magnetic base that provides a sleek and secure attachment to the wall, allowing for easy removal and repositioning when desired. This modern design adds to the overall aesthetic appeal of the device.
On the other hand, the Room Sensor features a clip-on plastic base that needs to be attached to the wall. This design is less elegant compared to the SmartSensor’s magnetic base and may not blend in as seamlessly with your home decor. Additionally, the clip-on mechanism makes it slightly more cumbersome to remove and reposition the Room Sensor if needed.
The SmartSensor’s magnetic base offers a more visually pleasing and user-friendly wall mounting solution compared to the Room Sensor’s clip-on plastic base.
Range Capabilities
When it comes to range and detection, the SmartSensor outperforms the Room Sensor in several areas.
The SmartSensor boasts a communication range of up to 60 feet, compared to the Room Sensor’s 45-foot range. This extended range allows the SmartSensor to maintain a stronger and more reliable connection to the Ecobee thermostat, especially in larger homes or areas with obstacles like walls and furniture.
In my house, I don’t have 60 feet of open space, but I do have obstacles that can reduce the range.
Ecobee briefly notes that barriers, such as thick walls or multiple floors, and other devices operating on the same 915MHz frequency, like baby monitors or cordless phones, may decrease the range of the sensor.
Despite not having 60 feet of open space, I have seen a noticeable difference between the two.
With the thermostat located in the living room and a sensor in the bedroom adjacent to it, the Room Sensor may display an “unable to communicate” error when placed on the far side of the bedroom. Moving it closer to the thermostat resolves this issue.
However, the SmartSensor can be placed anywhere in the room without any problems. I was even able to place it in the next room over and still have no problems; I just don’t need a sensor in that room.
Detection Capabilities
The motion detection capabilities of the SmartSensor are also enhanced.
It includes a pet immunity feature, which helps avoid false readings caused by pets moving around the house. The older Room Sensor lacks this technology, potentially leading to inaccurate occupancy detection when pets are present.
The SmartSensor’s wider viewing angle (140° horizontal and 100° vertical) provides better room coverage compared to the Room Sensor’s narrower angle (120° horizontal and 25-30° vertical). This means the SmartSensor is more effective at detecting movement and occupancy across a larger portion of the room.
Ecobee Smart Sensor Viewing Angle
Since I don’t possess the necessary tools to measure the viewing angle of the sensors, I’ll rely on Ecobee’s provided information as well as the datasheets for the PIR sensors used.
The Ecobee SmartSensor uses a NiCera SFG323 PIR sensor.
The original Ecobee Room Sensor uses an Excelitas LHi 776 PIR sensor, which is no longer produced.
The specs in the datasheets show that the newer sensor has better viewing angles, both vertically and horizontally.
Also, Ecobee uses some type of Fresnel lenses to direct IR light toward the PIR sensors. Check out these pictures I took of each type of sensor. The Smart Sensor was completely redesigned, so I’m guessing that helps with occupancy detection.
Ecobee SmartSensor Viewing Angle
“Viewing angle: 140° horizontal and 100° vertical. Occupancy sensor accurate to a distance of 20 feet (6 m).
For optimal placement for pet immunity, wall-mount at a height of 6.5 ft (2 m).
For optimal placement for temperature readings, set at a height of 4 ft (1.2 m).
Occupancy viewing distance: 20 ft (6 m).”
Ecobee
Ecobee Room Sensor Viewing Angle
“Viewing angle: approximately 120° horizontal and 25–30° vertical.”
Ecobee
Ecobee Smart Sensor Occupancy Sensor Range
The occupancy sensor range refers to the distance within which the sensor can accurately detect the presence of people in a room. A larger range typically means that the sensor can cover a bigger area, allowing it to detect movement and human presence more effectively.
Ecobee doesn’t provide occupancy viewing distance specifications for the Room Sensor. Ecobee clearly states the range for the Smart Sensor.
Occupancy viewing distance: 20 ft (6 m).
Ecobee
In the case of the Ecobee SmartSensor, it has a better occupancy detection range than the Ecobee Room Sensor, which means it can cover a larger area to detect movement and occupancy.
However, the exact range is not provided by Ecobee for the Room Sensor, so it’s hard to make a direct comparison.
I have noticed a difference, though, when using them around the house.
I have two room sensors and two SmartSensors. One key difference I’ve noticed between them is that the Room Sensor cannot detect occupancy as well as the SmartSensor can. If you have the “follow me” feature set up, using only the SmartSensor would yield better results.
Keep in mind that the range of occupancy sensors can be influenced by various factors, such as the layout of the room, furniture placement, and any obstacles or barriers, like thick walls or multiple floors. These factors can impact the sensor’s ability to accurately detect occupancy within its specified range.
Ecobee Smart Sensor Pet Immunity
Ecobee refers to “pet immunity” as a feature designed to avoid inaccurate occupancy readings caused by the movements of our pets. The company also provides guidance on the optimal placement of the sensor.
SmartSensor has undergone rigorous testing for “pet immunity” so you don’t have to worry about your furry friend or friends accidentally setting off its occupancy detection feature.
Here are a few extra steps you can take to further prevent your pets from setting off the occupancy detection feature:
Place the SmartSensor in a spot that is not within view of a stairwell—especially if your pet likes to race up and down the stairs all day.
Avoid placing the SmartSensor in front of that popular hangout spot for your pet, like their favourite chair.
If your pet is the curious type, consider mounting SmartSensor on the wall with the included wall-mount at a height of 6.5 ft (2 m), rather than placing it on a stand where it may be more easily knocked away.
Ecobee Support Page
Ecobee Sensor Pairing Process
There are two types of pairing processes, depending on which sensor you have. Here’s some help you are having trouble pairing the sensor to the thermostat.
Ecobee Room Sensor Pairing Process
For the Room Sensor, the pairing process requires you to be near your smart thermostat. To power up the Room Sensor, you would remove the plastic tab from the battery compartment.
The Ecobee thermostat would then display a menu for sensor pairing.
Next, you would navigate through several menu options to name the newly paired sensor and select the comfort settings to use it with.
Ecobee Smart Sensor Pairing Process
The SmartSensor pairing process can be carried out from anywhere in the house using the Ecobee app.
To do this, open the app, navigate to the “add new device” menu, scan the QR code on the sensor, and power up the sensor.
The device is now ready for use, and you can configure the additional options at your leisure.
Battery Life and Maintenance
Another area where the SmartSensor shows significant improvement is in battery life.
The SmartSensor uses CR-2477 batteries, which offer a battery life of up to 5 years. In contrast, the Room Sensor uses smaller CR-2032 batteries, which typically last only about 1 year.
The increased battery life of the SmartSensor means less frequent battery changes, making it a more convenient option for homeowners who prefer low-maintenance devices.
In terms of long-term costs, while the CR-2477 batteries used by the SmartSensor may cost slightly more upfront, the fact that they last significantly longer makes the overall cost of operation relatively similar over time.
Changing the batteries in both sensors is a straightforward process, though the extended lifespan of the SmartSensor’s battery reduces the need for frequent maintenance. Over several years, the ease of use and reduced maintenance of the SmartSensor adds up, making it a more user-friendly option overall.
Thankfully, these don’t chirp like my smoke detectors, waking me up in the middle of the night!
It’s still too early to confirm whether SmartSensors last for five years, but there have been instances of defective units draining the battery within weeks. Ecobee offers replacements for these cases if you contact their customer support through phone, chat, or email.
I haven’t experienced any issues with my SmartSensor battery, and it hasn’t died yet. However, I’ve had to replace the battery in my Room Sensors twice within a year and a half, yielding around 8-9 months of battery life.
If this pattern holds for the SmartSensor, I can anticipate 3-4 years per battery. So far, it’s been over three years, and I haven’t had to replace it yet.
The extended battery life mainly adds convenience, as the long-term cost difference is minimal. As of the time I updated this article, here are Amazon’s recommendations, a 3-pack of CR-2477 costs $8.36, while a 4-pack of CR-2032 is $7.84.
For simplicity, let’s assume a 2-pack of CR-2477 lasts 8 years (4 years per battery), and a 4-pack of CR-2032 lasts 4 years. To match the SmartSensor’s 2 battery life of 8 years, you would need to purchase two 4-packs of CR-2032 for the Room Sensor.
Over 8 years, you would spend $8.36 on SmartSensor batteries and $15.68 (2 x $7.84) on Room Sensor batteries. This results in a $7.32 difference over eight years, making the cost difference insignificant.
Are Ecobee Sensors Worth the Upgrade?
If you’re using the original Ecobee Room Sensor, you might be wondering whether upgrading to the newer SmartSensor is worth it. While both sensors provide valuable functionality for optimizing your home’s comfort and energy efficiency, the SmartSensor does offer a few key improvements.
So, is it time to make the switch, or can you stick with the older model? Let’s take a closer look.
Compatibility with Newer Ecobee Systems
One of the great things about Ecobee is that they’ve made sure the SmartSensor is backward compatible with older Ecobee systems. If you’re currently using an Ecobee3, Ecobee3 Lite, or Ecobee4 thermostat, you won’t have any issues integrating the SmartSensor into your setup.
This is excellent news for users who have invested in older Ecobee products but want to take advantage of the newer sensor technology. I have the Ecobee 3 Lite and had no problems.
For users upgrading from the Room Sensor, the performance enhancements of the SmartSensor will be noticeable. The longer range, wider viewing angle, and pet immunity features all contribute to better temperature control and more accurate occupancy detection.
When You Should Upgrade
While the SmartSensor offers several clear advantages, not everyone will need to rush out and buy the latest model. House size, room layout, and your specific use case should all factor into your decision.
- House Size and Layout: If you live in a larger home with multiple rooms that are far from your thermostat, the extended range of the SmartSensor (60 ft vs. 45 ft) can make a significant difference. It ensures that even rooms further away from the thermostat receive accurate temperature control.
Similarly, if you have a more complex home layout with multiple floors or thick walls, the improved range and motion detection can help maintain better comfort levels across the entire house. - Room Layout: The wider viewing angle of the SmartSensor (140° vs. 120° horizontal) means it’s better suited to larger rooms or open-concept spaces. If you have rooms where occupancy might shift around frequently, like a living room or office, the SmartSensor’s ability to detect motion across a broader area will provide better results than the older Room Sensor.
- Use Cases that Benefit from SmartSensor: Homes with pets will find the pet immunity feature of the SmartSensor particularly useful. If your Room Sensor frequently gets confused by your pet’s movements, causing the thermostat to heat or cool unnecessarily, the SmartSensor can help eliminate this issue. Additionally, if you’ve experienced issues with your Room Sensor dropping connection or misreading room temperatures, the more robust communication capabilities of the SmartSensor will provide a smoother experience.
Scenarios Where Room Sensor Might Still Be Sufficient
That said, if your home is smaller, or you’ve been satisfied with the performance of the Room Sensor, there may not be a need to upgrade. The Room Sensor still does an excellent job of managing comfort and optimizing energy use in most situations.
For apartments or homes with simpler layouts, where range and viewing angle are less of a concern, the Room Sensor may continue to meet your needs without any problems.
If you’re primarily using your Room Sensor in a single room that’s relatively close to your thermostat, the shorter range and narrower detection field won’t be as much of a limitation. In these cases, sticking with the Room Sensor can still provide reliable comfort management at a lower cost.
Alternatives to Ecobee Sensors
While Ecobee offers excellent smart sensors for temperature and occupancy management, it’s always a good idea to explore other options, especially if you’re looking for more specific features or trying to build an integrated smart home system with different brands. Let’s look at some alternative smart sensors and their compatibility with Ecobee, as well as how Ecobee’s own Haven system enhances home security.
Third-Party Sensor Compatibility
Ecobee sensors are designed to work seamlessly within their own ecosystem, but what if you’re using other smart home systems like HomeKit or SmartThings? Fortunately, Ecobee provides some flexibility when it comes to integrating third-party sensors, though there are certain limitations to be aware of.
Integrating HomeKit, SmartThings, and Other Third-Party Sensors
If you’re using Apple HomeKit or Samsung SmartThings, you can connect other compatible smart sensors to work alongside your Ecobee thermostat. Through HomeKit, for instance, you can integrate third-party temperature and motion sensors and create automation rules that can interact with Ecobee’s system.
Similarly, SmartThings provides options to connect third-party sensors that can trigger actions in your Ecobee thermostat, such as adjusting the temperature based on motion or temperature readings from a third-party device.
Pros and Cons of Using Third-Party Sensors with Ecobee Systems
The main pro of using third-party sensors is greater flexibility. If you’re already invested in a HomeKit or SmartThings ecosystem, adding sensors from other brands can expand your smart home’s functionality without needing to replace existing hardware.
Some third-party sensors offer features that Ecobee sensors don’t, such as more granular control or different sensor types like humidity or air quality sensors.
However, there are also cons. First, full integration with Ecobee’s system may not be possible, meaning you might not get the same seamless experience as you would with Ecobee sensors.
Some third-party sensors may not work as reliably or might lack certain functionalities, like triggering Ecobee’s Follow Me mode.
Lastly, setting up and managing third-party sensors across multiple platforms can become complicated, especially if you’re using multiple apps to control different devices.
The success and usefulness of Ecobee’s smart thermostats can be attributed to their sensors. Recognizing Ecobee’s achievements, Google’s Nest thermostat also began incorporating sensors. These compact devices relay a wealth of important information to the smart thermostat. To better understand the value of this information and the distinctions between the two kinds of Ecobee sensors, let’s explore further.
If you’re interested in other types of sensors, there are a lot.
Ecobee Haven System
Ecobee is not just about managing home climate; they’ve also expanded into home security with the Ecobee Haven system, which integrates sensors for doors and windows alongside their traditional temperature sensors. Haven provides a more comprehensive smart home solution by combining climate control with home monitoring.
An Overview of the Ecobee SmartSensor for Windows and Doors
The Ecobee SmartSensor for windows and doors is a key part of the Haven home security system. These sensors are designed to monitor whether windows and doors are open or closed, adding an extra layer of security to your home.
Paired with the Ecobee SmartCamera, the system can notify you in real-time if a door or window is unexpectedly opened, allowing you to keep a closer eye on your home’s security even when you’re away.
These sensors use the same wireless connectivity as Ecobee’s temperature sensors, and they integrate with the Ecobee app, meaning you can monitor both home security and climate control from the same interface.
How the Haven System Works with Ecobee Smart Sensors to Enhance Home Security
The Ecobee Haven system builds on the functionality of its smart sensors by combining them with other Ecobee devices, such as cameras and thermostats. When a window or door sensor detects activity, it can trigger Ecobee’s smart camera to record the event or send you a notification.
The Haven system uses these sensors to better understand your home’s occupancy patterns. For instance, if a door sensor detects that someone has entered, the system can adjust the thermostat based on occupancy, ensuring energy is used efficiently even while maintaining security.
Haven’s integration with geofencing, motion sensors, and the SmartSensor for temperature provides a complete ecosystem for managing both comfort and security. However, it does come with a monthly subscription fee (starting at $5), which provides access to advanced features like 24/7 monitoring and video storage for smart cameras.
Overall, while Ecobee’s own sensors are highly functional and integrate seamlessly with its systems, third-party options offer additional flexibility for more complex smart home setups. For those invested in Ecobee’s ecosystem, especially with the Haven system, sticking with Ecobee’s proprietary sensors ensures the smoothest, most cohesive experience.
Conclusion: Choosing the Right Ecobee Sensor for Your Home
In the end, choosing between the Ecobee Smart Sensor and Room Sensor comes down to your specific needs. If you value longer battery life, a wider detection range, and pet-friendly features, the SmartSensor is the obvious choice. On the other hand, if you’re satisfied with your Room Sensors and they’re working well, there’s no urgent need to upgrade.
As smart home technology continues to evolve, these sensors will likely play an even bigger role in optimizing comfort and energy savings. Whichever you choose, you’re making a smart investment in your home’s future.