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FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
15 left in stock
Arrives
Friday, Oct 30
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At a glance
- Condition
- New
- Style
- Motion Sensor
- Dimensions
- 0.79"D x 1.97"W x 3.15"H
- Weight
- 2.4 oz
- Color
- White
- Power Source
- Battery Powered
- Maximum Range
- 30 feet
- Works with
- eufy Security HomeBase and all other eufy Security products
Features 5
- Protection That Lasts: The included battery provides up to 2 years of power for round-the-clock security.
- Extensive Coverage: Detects motion within a 100 field of view up to 30 feet awaymore than enough to secure an entire room of your home. (NOTE: This motion sensor is not waterproof.)
- Adjustable Sensitivity: Tailor the sensitivity of the motion sensor so that it only alerts when humans are in rangerather than your playful pet dog or cat.
- App Alerts: Notifies you as soon as motion is detected, sending a message to your phone via the eufy Security app, no matter where you are.
- Optional 24/7 Protection Service: New optional 24/7 professional monitoring service is now available for 24/7 emergency police, fire and medical response when your alarm system is triggered.
Description
eufy Motion Sensor Alarm System 7-Piece Kit eufy Motion Sensor E20 eufy Entry Sensor E20 Glass Break Sensor E10 Flood & Freeze Sensor E20 eufy Entry Sensor At eufy we believe all great smart home products need to be thoughtfully built from the start. From whole-home security to smart cleaning solutions, eufy's technology brings you expert protection and deep cleaning that's tailored to your lifestyle and creates human-first technology that enlivens the lives of everyone around you. Because care is what makes a house a home, everything we build is built with care for you. eufy, Built with Care
Specs 17
| Brand | eufy Security |
|---|---|
| Color | White |
| Power Source | Battery Powered |
| Item Weight | 2.4 ounces |
| Maximum Range | 30 feet |
| Mounting Type | Wall Mount |
| Number of Batteries | 1 Lithium Metal batteries required. (included) |
| Antenna Location | Walkway, Hallway, Staircase, Room |
| Item Dimensions D x W x H | 0.79"D x 1.97"W x 3.15"H |
| Manufacturer | eufy Security |
| Number of Items | 1 |
| Global Trade Identification Number | 82 |
| UPC | 194644180782 |
| Item Highlight | 30 ft Detection Range, 2-Year Battery Life, Adjustable Sensitivity, HomeBase Required, Optional 24/7 Protection Service |
| Built-In Media | Motion Sensor |
| Model Number | 359862 |
| Mfr Part Number | T8910021 |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, Oct 30
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Great item and price
Style: Motion Sensor
Love this system and the unit work perfect
Reviewed in the United States on August 9, 2026 by Paul Terry
Excellent Eufy movement detecting add-on
Style: Motion Sensor
Works great for movement detection inside the home.
Reviewed in the United States on July 25, 2026 by Richard Ríos Beauchamp
2 Years Outdoors and Still Working!
Style: Motion Sensor
I'm impressed with these. I took a chance and mounted them outdoors to extend the detection range of my S340 cams. One is mounted under an eave and the other I wrapped in a clear sandwich bag with a rubber band and mounted it to a tree! Its been about 2 years and they both continue to work just fine with the original batteries. I have changed the sandwich bag a few times. They've survived heavy rains and winter snow. One down side to this application is that they will trip when a squirrel, rabbit or other small animal passes by.
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Reviewed in the United States on November 12, 2025 by TJR
Sensitive Detector (Which is a good and bad thing)
Style: Motion Sensor
Eufy Security Review I’ve put a lot of time into researching alarm systems. I used to work for an alarm system company and believe in home managed “smart” systems. Eufy caught my eye after a lot of great reviews on the doorbell. I decided to keep all my sensors and cameras within the same system to keep it easier to manage. After having it for 8 months now: I’ll go over the pros and cons of this system from my experience. My system includes: 2k Wireless Doorbell Cam, Door/window sensors, Motion sensors, Eufycam 2c (wireless) version, Eufy Cam 2, and a 2k Indoor Cam Pan and Tilt. I have been testing most cameras on the highest sensitivity Pros: 1. Won’t drain your wifi: We have relatively low bandwidth, a decent amount of smart devices, and Eufy works well most of the time! The range is good too I have one camera in the backyard away from the house and it streams well. 2. Local recording: Peace of mind knowing someone at the company or something isn’t watching you.. I hope, haha. 3. Installation and setup: Don’t know how it could be easier. 4. Interface is easy to use and setup to customize 5. Battery on dedicated Cameras - The version 2 camera really did last 6 months before I had to charge it, and I had high sensitivity most of the time. The 2C cameras are good, but not quite as advertised. The doorbell is the worst and I have to charge is about every 2-3 weeks. Cons: 1.) Motion detection - this is my biggest issue with the system as its part of most of the products use this hardware to trigger alerts or record. - Detection/reach is NOT 30 feet. I’ve measured on multiple cameras and it rarely picks up anything that far away. Usually starts recording at about 10-15 feet (so half?!). Not great. - People and dogs? Nope. It will often go off with cars, leafs blowing by, when a cloud moves and the suns sines through brighter than the second before, and more. This can be very frustrating, especially when you have it set to “human only” mode. WHAT HUMAN CAN MOVE 35 mph and is 12 feet long? Or what human is 3 inches big and brown…i.e a leaf? Haha. - Slow: If someone hurries up to your door or by the camera, it won’t pick it up. I get a lot of recording of back of heads as UPS folks are going away. -Sometimes misses obvious ones: A family member will walk by a camera 10 ft away in the middle of the day, or go to their car and nothing will have been triggered. Kinda scary. This is especially odd since I’ll get 3 triggers a day from a gust of wind, but not a person walking by… I don’t get it. 2.) False Alarms. This is mostly a product of the motion detection and mentioned above. The scariest in when you have the alarm set to “away” in the middle of the night. The heater turns on in the basement and a “motion detection” alarm goes off. You spring out of your bed… oh crap, someone is in the basement?? Grab a gun, wife runs to grab kids… your adrenaline is running high at 2am and… nothing (thankfully). Have that happen a few times with a camera, or motion sensor and then it becomes a boy who cried wolf situation. Scary when you actually need to be alarmed though you’ve built up a tolerance. But hey, now I’m getting good at “sweeping” an area much like a SWAT team I see in the movies? Haha 3.) Default evening motion detection is set to “all things”. So if cars go by, you’ll have to turn off notifications or else you’ll get a LOT, all night. 4.) Doorbell Battery life: if you want to monitor well, it dies quickly. Again, it picks things up late in my experience so I have to have it on high sensitivity or it misses obvious things. And yes, I’ve tried placing it in different spots. 5.) Image quality not as advertised- for “2k” on some of these cameras, it’s not like the advertisements where you can zoom in and clearly see a license plate or something haha. Faces are pretty good, but it’s not thaaaat great. Better than others for sure, but still not what you’d expect for what seems to be the highest def in the consumer wireless market. 6) Incomplete Security items: These are bonuses, but a fire-alarm, flood sensors, or other items that would make it complete. This includes monitoring service. Would be great to have IF you go away on vacation for a week. I’d pay for it. Lastly, I love that a certain competitor has a cell signal incase wifi goes out. 7) Indoor cam has its own security settings. Why is this separate? Just treat as another 2c, or version 2 camera. Conclusion: I had high hopes for this system. Other systems seems to be less compatible with google home, or charge money to use the cloud, or don’t locally record, etc…. It seems there is not a perfect complete system. This one is pretty good If I were to do it again I would just use the doorbell and maybe door/window sensors. I then would get the cameras and motion sensors from a different company and hope I can bridge it all to a google home or something.
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Reviewed in the United States on February 9, 2021 by Michelle White
Works Great
Style: Motion Sensor
Longer range than advertised. Works Good
Reviewed in the United States on June 30, 2026 by gapi
Motion Detector
Style: Motion Sensor
Easy to set up and install. Simple integration into Eufy security system
Reviewed in the United States on October 12, 2025 by mfs26
Excellent motion sensor. Easy set up.
Style: Motion Sensor
These work very well. They are excellent. Set up is easy as can be. You must have the Eufy hub for the audible alarm. The coverage are is more than sufficient. It does not pick up on small animals.
Reviewed in the United States on January 8, 2026 by AtoZ
Great Value + Working Well
Style: Motion Sensor
I purchased two Eufy Motion Sensors for my home and they have proven to be reliable and function perfectly. You will need a working Eufy Homebase, or Homebase 2, in order to use the Eufy Motion Sensors. Adjustments for sensitivity, when the sensors will be active, and how you receive notice of movement, etc., are all made using the Eufy phone App. Adding the motion sensor to your existing system is a snap; I believe it took longer to remove the sensor for the packaging and install the battery than it did to pair the sensor to my Homebase 2. Mounting the sensor to your wall or ceiling is also easy using screws or peel and stick tape, all of which is included. I have a number of Eufy products and, in general, I'm quite happy with them. However, I find Eufy's help and instructions to be either vague, fragmented, non-existent, or just plain wrong. In this case there are no instructions for sensitivity adjustments, etc.. Figuring out how to make those adjustments with your phone App is relatively intuitive, but Eufy leaves it up to you to hunt and peck. Also, the User Manual is incorrect (page 8), where it discusses battery replacement. In my experience this is quite typical of Eufy, which is why I only gave them 4 stars for installation.
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Reviewed in the United States on September 14, 2022 by Reviews from Me