eufy SecurityHome Alarm System Motion Sensor, 100° Coverage, 30 ft Detection Range, 2-Year Battery Life, Adjustable Sensitivity (HomeBase Required)

The Eufy Motion Sensor is a solid choice if you’re looking to boost home security or automate some of your smart devices without breaking the bank. With a wide 100° field of view and a detection range up to 30 feet, it’s effective for entryways, hallways, or larger rooms. Setup is straightforward with the Eufy app, and because it’s wireless and battery-operated, you can place it wherever you need it. Plus, the battery lasts an impressively long time. I’ve had several motion sensors from other brands and sheaths seem to be replacing batteries!In terms of performance, it’s quick to respond, catching movement with minimal delay. It integrates nicely with other Eufy devices like cameras and alarm systems, and you can link it with Alexa or Google Assistant to make it part of a larger smart home setup. It’s great for things like triggering lights or notifications when you’re away. I use it with a Homey Pro to trigger lights etc.For anyone already using Eufy products, this motion sensor offers solid functionality, ease of use and good value.

Ordered this to extend my 2C camera system with Homebase2 into an alarm system. Having already purchased the keypad a few weeks ago it was time for a motion sensor. Very impressed so far. The sensor is small and quite discreet - and VERY easy to setup. Sync to your Homebase, give it a name - stick to the wall - job done.You can set this to "not react to motion" if you need to turn it off when in "Home" mode like me - that's done via the app. You can also setup various actions from the "Automation" options within the app. I have the alarm triggered when motion is detected in away mode (with 15 second alarm delay) and the alarm sound to replicate across homebase and some of my external 2C cameras and the other cameras that don't sound their siren plus the doorbell (which doesn't have a siren function) record video in the event of a siren activation.I used to have a Ring doorbell but that's now gone in the bin - this is far superior.Eufy seems like a solid system and has worked well and as expected on each test I've done plus a couple of false activations where I forgot about it and didn't key the code in quick enough.Few points to mention, yes the "siren" from the Homebase2 is pretty useless - BUT the siren sounds emitted from the cameras are pretty loud. Not enough that you can hear them from 2 streets away but certainly a deterrent I would hope.An external siren for this system is supposedly in the works and if it becomes available I will add it to my system.For the system as a whole considering price, installation, impact on your home (wires etc) - I am 100% an advocate and have recommended to several friends and family.For the benefits of the system I have described above I have;2C camera system with Homebase2(3 Cameras on total)"Add on" Video Doorbell"Add on" - Keypad"Add on" motion sensorsIn the near future I will be hooking up at least 2 of the external cameras to Solar Panels so I don't have to worry about charging them (the 3rd cam is on a north facing wall which never gets any direct sunlight so will not waste £50) on that one - I'll bite the bullet and charge it every 6 weeks or so.Final thought, aslong as your first purchase contains a Homebase - you can expand your system over time and at a pace to suit your appetite and wallet with all of the "add on" devices.Hope this helps

Motion sensor is accurate and reliable, but you can’t use it outside since it isn’t waterproof. Otherwise a solid product.

Easy to setup and operate with the app, quality seems really good for the price

Love Eufy products. These are sensitive, accurate and reliable monitors and a perfect inexpensive item to add to a Eufy system.

I bought this as a bolt on to my existing Eufy system. I had some marketing messages from Eufy suggested this was a useful addition to support the operating battery life on my Eufy doorbell. I have the battery operated version which is good, but I have to charge it every 3 weeks (despite making sure the settings are all correct). Anyways, I’ve set it up tonight. The unit is very, very compact and with the mount, it’s really no bigger than an average size door knob. It uses a standard camera battery, not a rechargeable fixed battery like other Eufy camera system components.It’s also not waterproof, so if using outside, you need to ensure it’s covered so as not to get wet. I don’t think the sensor operates through windows, I tried it but it didn’t seem to work.I’ve set mine up as part of the automation function so it does most of the detection/motion detection which then sends a signal to my doorbell to record. I am anticipating some good battery saving so this is early days. The automation/integration setup was ok, a little convoluted, but thinking logically and taking a bit of time over it, I could make it work so anyone could. I would buy another as I do think this is a good addition, but the only down side I can think of is that it really is only made for covered or internal (eg garage or porch) applications.Oh and finally, fitting. In the box, the motion detector comes with a simple two screw bracket (plus screws and a 3m sticky patch). Once you fit the bracket, motion detector/sensor clips easily into it. Just make sure you position the mount correctly before clipping the motion detector module into it.