AqaraDoor and Window Sensor P2, Matter Over Thread, Requires Thread Border Router, Contact Sensor with Remote Alarm and Local Automation, Supports Apple Home, Google Home, Alexa

Aqara makes some of the best smart home technology you can buy, and these are so far the best door/window sensors I've purchased. I really like that it is built with Matter; it works with Apple's HomeKit right out of the box and also paired easily with Home Assistant. No hub needed. If you're very familiar with either of those smart home systems, you know how frustrating it can be if you ever experience an internet outage... waiting for all of your devices to come back online, sometimes needing to be repaired. I have never experienced this issue with these Aqara sensors. They come back online ASAP and I have never had to re-pair them.

Terrible Matter support. The only thing they would work with is the M3 hub. When I managed to get them paired in HomeKit they would only ever show as unavailable. I was never able to pair them with home assistant. This is the 2nd “Matter” device I have from Aqara and I won’t be buying anymore. Don’t buy them if you want to keep your sanity.

These are wonderful, but you have to do a few things if you're having issues. I tried connecting one and it was not working at all. So I tried to set up another and the same thing happened.Since both were not working I figured it was something with my network. Turns out my mesh router (Google Nest Wifi Pro) was conflicting with my router (whatever ATT gave me). The ATT router had its WiFi signals enabled for 2.4Ghz and 5Ghz so when the set up was happening, it was picking up both WiFi connections from my phone. I disabled the signals from the ATT router, and they still weren't working, but I wanted to try a third just in case, and it magically connected easily.Since that started working, I wanted to troubleshoot the other two that were still having issues. I figured hat during the setup, the devices remembered the settings so I needed a way to reset them and start fresh. I saw a video from their YouTube account that you can factory reset if you press the button 10 times.Once I did that, both connected easily.I bought 13 of these and never had an issue setting up the other 11 after the network issue / factory reset took place. They are easy to set up and don't get in the way.Finally I used the extra magnets that came with each device on my fridge, lol.

I ordered 6 aqara door sensors after hearing a lot of good things about aqara in general. These sensors use the Matter protocol which requires a Matter hub. For me, my options are Google Nest Hub v2, Hubitat Elevate C8, and Samsung Smartthings. All 3 have Matter and can act as hubs. Some, better than others.Quality-wise, these sensors could be better. Of the initial 6 sensors, 5 setup flawlessly, and 1 refused to pair. I sent it back for a replacement. Another sensor decided to go rogue in it's first 24 hours. It would disappear and reappear on the network. It isn't far from the hub, and after the first 24 hours it stopped its weird behavior and worked correctly. One sensor I tried moving from Google Nest Hub to Hubitat, big mistake. First, I couldn't get the Hubitat to pair with the sensor. For some reason, it could never find it. Then when trying to re-pair it to Google, it would fail. After much screaming, crying, begging and pleading I managed to connect that sensor through Smartthings.What I learned is the provided directions are worthless. Pressing the sensor button a few times and then holding it for about 5 seconds will enter pairing mode. The sensor will respond with a slow flash blue light. If it doesn't pair, press and hold another 5 seconds and the sensor will flash red. I am guessing that is factory reset even though it is undocumented. Then press for 5 more seconds to get to the slow blue flash to try pairing. If that fails, move the sensor next to the Matter hub. Try pairing. If that fails, reboot the hub. I had a problem pairing the replacement sensor that rebooting the Google Nest Max Hub fixed. If that fails, try a different hub, like Smartthings. I hope this helps some of you having pairing issues.Update: For those having trouble getting the P2 contact sensor on Hubitat, here's how to do it with the Google Nest Hub or Max. 1. Factory reset the P2 sensor. 2. Pair it to your Google Nest Hub or Max. 3. Immediately (do not wait), open the sensor on the Google Home app and click the gear icon. 4. Click Linked Matter apps & services. 5. Click Link apps & services. 6. Click Use pairing code. 7. You have 3 minutes to open your Hubitat app, go to Devices, Add a device. 7a. Click Matter. 7b. Enter that code in the Matter setup code box. If you were fast enough it should get recognized by your Hubitat. Good luck!

It’s great, It looks kinda funny. But it was an easy setup and works great. Although it will disconnect from the internet and not easy to repair. It sticks to the door frame great. It’s kinda big and chunky.

I was excited about this sensor as I had heard a lot of great reviews about it. There are a couple of issues I have noticed though, after having used it for a few months. Firstly, I am not sure but I think it get's affected by high humidity. The sensors stopped working within 2 months of receiving and installing. I thought it would be battery issue but it lasts for over a year for others. So I just opened it, took the battery out and put the same one in, and it started working. Again last week, after around 2 months or so, it stopped working, same issue same fix. I am noticing this could probably be happening around the time when humidity is very high (as my Denon receiver & PS4 also go bonkers during monsoons here). Has anyone else been facing this? Another minor issue that I noticed was, this won't connect in the Aqara app unless you have a separate Aqara Matter hub. As I luckily had an Apple TV, I could connect it with the HomeKit app. But, I am still restricted as I cannot use it to set direct automations and scenes in the Aqara app with the other products. As some reviews had said, probably the previous version would have been a better choice, as it's a bit smaller in size, is Zigbee control, and hence can connect in the Aqara app too. The pros - Quick and almost instant no-lag response with HomeKit. I get a notification immediately when my door opens or closes, both on my phone and on my watch.