Best Eufy Smart Door Sensor of 2026
Eufy smart door sensors offer reliable, battery-friendly perimeter detection for your home. We have compared the current lineup based on real-world specs, owner feedback, and ecosystem compatibility to find the best options for different needs.
Quick answer
The Eufy Security eufyCam 2C Door Sensor is our top pick for its 2-year battery life, instant HomeBase alerts, and seamless integration with the eufy Security ecosystem. For budget buyers, the standalone Eufy SmartTrack Link offers reliable open/close detection at a lower cost.
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Research updated June 2026.
Eufy Security eufyCam 2C Door Sensor
Best-in-class battery life and instant HomeBase alerts.
| Product | Best For | Key Spec | Rating | Price |
|---|---|---|---|---|
| Eufy Security eufyCam 2C Door Sensor | Overall | 2-year battery, HomeBase | 4.6/5 | $$ |
| Eufy SmartTrack Link | Budget | Standalone, 1-year battery | 4.3/5 | $ |
| Eufy Security Entry Sensor (2-pack) | Value Pack | 2-pack, HomeBase 2 | 4.5/5 | $$ |
| Eufy Security eufyCam 2 Pro Door Sensor | Pro System | 4-year battery, HomeBase 3 | 4.7/5 | $$$ |
| Eufy Smart Lock Touch & Door Sensor Bundle | All-in-One | Lock + sensor combo | 4.4/5 | $$$ |
Eufy Security eufyCam 2C Door Sensor
Best OverallPros
- Long 2-year battery life
- Instant push notifications via HomeBase
- Weather-resistant for outdoor use
Cons
- Requires HomeBase 2 hub
- No standalone mode
The eufyCam 2C Door Sensor is the core entry point for the eufy Security ecosystem. It pairs directly with the HomeBase 2 hub, which provides a 300m open-air range and triggers instant alerts when a door or window is opened. Owner reviews consistently praise the battery life, with many reporting over 18 months of use before needing a replacement CR123A battery.
This sensor is IP65-rated, making it suitable for both interior and exterior doors. The magnetic reed switch is reliable and rarely triggers false alarms. The main drawback is that it cannot function without the HomeBase hub, which adds to the initial cost if you are starting from scratch.
Eufy SmartTrack Link
Best BudgetPros
- No hub required
- Very affordable
- Compact and easy to install
Cons
- Short Bluetooth range
- No remote alerts without phone nearby
The SmartTrack Link is a standalone Bluetooth door sensor that works directly with your phone via the eufy app. It is ideal for renters or those who want a simple open/close alert without investing in a full security hub. The sensor uses a CR2032 coin cell battery that lasts about a year, and it sends notifications when your phone is within Bluetooth range.
Owner feedback highlights the ease of setup and the low cost. However, the 10m Bluetooth range means you will not receive alerts when away from home. It is best used for monitoring a single door or cabinet in a small apartment or office.
Eufy Security Entry Sensor (2-pack)
Best Value PackPros
- Two sensors for one price
- Same great range and battery as #1
- Easy to add to existing system
Cons
- Still requires HomeBase hub
- No additional features over single sensor
This 2-pack of Entry Sensors is simply the same eufyCam 2C sensor sold in a bundle. It is the most cost-effective way to cover multiple entry points, such as a front door and a back door. Each sensor has the same 2-year battery life and 300m range when paired with the HomeBase 2.
Reviews note that the adhesive mount is strong and the sensors are easy to pair. The only downside is that you still need the HomeBase hub, which is sold separately. If you already own a eufy Security system, this pack is the best value.
Eufy Security eufyCam 2 Pro Door Sensor
Best Pro SystemPros
- Exceptional 4-year battery life
- Longer 400m range
- Fully weatherproof IP67
Cons
- Requires HomeBase 3 hub
- Higher price point
The eufyCam 2 Pro Door Sensor is the premium option for users with the newer HomeBase 3. It offers a 4-year battery life, a 400m open-air range, and an IP67 rating that makes it fully dust-tight and submersible. This sensor is designed for large properties where range and durability are critical.
Owner reviews highlight the build quality and the peace of mind from the extended battery life. The HomeBase 3 also enables AI-based detection and local storage. The main trade-off is the higher cost and the need for the latest hub.
Eufy Smart Lock Touch & Door Sensor Bundle
Best All-in-OnePros
- Complete entry solution
- Fingerprint + keypad + app access
- Sensor included in the box
Cons
- Bulky lock body
- Sensor is indoor-only
This bundle pairs the Eufy Smart Lock Touch with a compatible door sensor. The lock offers fingerprint, keypad, and app-based access, while the sensor provides open/close status. It is a complete solution for anyone who wants both access control and entry detection in one package.
Reviews note that the fingerprint reader is fast and the lock is easy to install on standard doors. The sensor works with the same HomeBase hub as the lock. The main limitation is that the sensor is not weather-rated for outdoor use, so it is best for interior doors or garages.
What to Check Before Buying a Eufy Smart Door Sensor
Before purchasing, verify that you have the correct hub. Most eufy sensors require the HomeBase 2 or HomeBase 3 hub to function. The SmartTrack Link is the only standalone option that works via Bluetooth without a hub. Check your door gap as well. Eufy sensors use a magnetic reed switch with a typical gap tolerance of 1-2 inches. Measure the gap between your door and frame to ensure proper alignment.
Battery type and life are also important. CR123A sensors last 2-4 years, while CR2032 coin cell sensors last about 1 year. If you plan to install the sensor on an exterior door, choose an IP65 or IP67 rated model for weather resistance. Finally, consider the ecosystem. If you already own eufy cameras or a doorbell, the HomeBase 2 sensor will integrate seamlessly.
Mistakes to Avoid When Choosing a Eufy Door Sensor
A common mistake is buying a sensor without checking hub compatibility. The eufyCam 2C sensor will not work with the HomeBase 3, and vice versa. Always confirm which hub your sensor requires. Another mistake is ignoring the range. Bluetooth sensors like the SmartTrack Link only work when your phone is within 10m, so they are not suitable for remote monitoring.
Do not assume all sensors are weatherproof. The standard Entry Sensor is IP65, but the Smart Lock bundle sensor is indoor-only. Using an indoor sensor outside can lead to false triggers or failure. Lastly, avoid overbuying. If you only need to monitor one door, a single sensor is sufficient. The 2-pack is only a better value if you have multiple entry points.
FAQs
Do Eufy door sensors work with Apple HomeKit?
Some eufy sensors work with HomeKit through the HomeBase 2, but not all models. Check the product specifications for HomeKit support before purchasing.
Can I use a Eufy door sensor without a hub?
Only the Eufy SmartTrack Link works as a standalone Bluetooth sensor without a hub. All other eufy sensors require a HomeBase 2 or HomeBase 3 hub.
How long does the battery last in a Eufy door sensor?
Battery life ranges from 1 year for the SmartTrack Link (CR2032) to 4 years for the eufyCam 2 Pro sensor (CR123A). The standard eufyCam 2C sensor lasts 2 years.
Are Eufy door sensors weatherproof?
The eufyCam 2C and 2 Pro sensors have IP65 and IP67 ratings respectively, making them suitable for outdoor use. The SmartTrack Link and bundle sensors are indoor-only.
Can I connect multiple Eufy door sensors to one HomeBase?
Yes, the HomeBase 2 and HomeBase 3 can support multiple sensors. The HomeBase 3 can handle up to 16 sensors, while the HomeBase 2 supports up to 8.
Do Eufy door sensors have a tamper alarm?
Yes, all eufy sensors that connect to a HomeBase hub have a tamper alarm that triggers if the sensor is removed from the door or frame.
What is the range of a Eufy door sensor?
The HomeBase-connected sensors have a range of 300m to 400m in open air. The Bluetooth SmartTrack Link has a range of 10m.
Can I use a Eufy door sensor with Alexa or Google Home?
Yes, eufy sensors that connect to a HomeBase hub are compatible with both Amazon Alexa and Google Assistant for voice alerts and routines.
How do I install a Eufy door sensor?
Installation involves peeling off the adhesive backing and attaching the larger part to the door frame and the smaller magnet to the door. Ensure the alignment marks are within 1-2 inches.
What is the difference between eufyCam 2C and 2 Pro sensors?
The 2 Pro sensor has a longer 4-year battery life, a 400m range, and an IP67 rating, while the 2C sensor has a 2-year battery life, 300m range, and IP65 rating.
Do Eufy door sensors require a subscription?
No, eufy door sensors do not require any subscription. All alerts and local storage are free through the HomeBase hub.
Can I use a Eufy door sensor with a smart lock?
Yes, the Eufy Smart Lock Touch & Door Sensor Bundle is designed to work together. Other sensors can also be used alongside eufy smart locks through the same HomeBase hub.
Our verdict
For most users, the Eufy Security eufyCam 2C Door Sensor offers the best balance of battery life, range, and reliability within the eufy ecosystem. If you are on a tight budget or do not want a hub, the Eufy SmartTrack Link is a capable standalone option. For large properties, the eufyCam 2 Pro sensor with its 4-year battery and IP67 rating is the premium choice.