Door 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

I needed to replace a door and window sensor and thought I'd give this one a try, since it's Matter over Thread. While the sensor is a little bigger than I'd like, it sits high up on a door and doesn't stick out much. I forget it's there now. I added the sensor directly to HomeAssistant (because I have HA set up in my Thread network already) and it added quickly without any hiccups, so it's definitely possible. I did have to replace the battery it came with, since I think the battery had drained while sitting in the box, but that wasn't a big deal. The sensor works great and I would definitely buy another one. Whenever possible I prefer Matter over Thread or Z-Wave devices for use in Homekit to keep 2.4GHz interference down and to keep IoT devices off my wi-fi network, taking up IP addresses. This one was a good buy and I recommend it IF you already have a thread border router. If you don't use Home Assistant and just use HomeKit, I still recommend it because I was able to pair it with HomeKit and it worked flawlessly. I have an AppleTV 4k and a few HomePod minis as border routers, so your mileage may vary.

I’ve been a long-time Aqara customer with over 35 Aqara products at home — including switches, cameras, and sensors. The original Aqara Zigbee contact sensors have worked flawlessly for years. That history of reliability is what led me to purchase four Aqara P2 Contact Sensors, which use Matter over Thread. Unfortunately, the P2 has failed to meet expectations. Constant Disconnections: After just a few months, the P2 sensors started disconnecting from Apple Home. Unlike Zigbee devices, which reconnect automatically after outages, the P2 requires a manual factory reset and re-pairing. This means removing it from Apple Home and rebuilding every associated automation and shortcut. This disconnection occurs roughly every two months or after internet outages, even though Matter and Thread are supposed to be local protocols. Other Matter and Zigbee devices recover just fine — only the P2 fails consistently. Battery Drain Issues: One of my P2 sensors showed 0% battery. After inserting a new CR123A battery, it dropped to 25% within a day and 0% by the next. Another fresh battery dropped to 75% in minutes. I contacted Aqara support, who attributed it to residual power and advised removing the battery, holding the reset button for 5 seconds, then reinserting it. This did not resolve the issue. Poor Customer Support: Support requires emailing Aqara and waiting 3–4 business days between responses. After weeks of following scripted troubleshooting steps, they concluded that my device was out of warranty and that I would need to purchase a new one. Given the issue appeared after a battery change, this response was especially frustrating. Final Verdict: The Aqara P2 Contact Sensor is unreliable, difficult to reset, and not ready for real-world use. If you’re heavily invested in automations or HomeKit, you’re better off with: • Aqara’s original Zigbee contact sensors, which are far more stable • Or Eve’s Matter-compatible contact sensors, which have performed far more reliably The P2 is not worth the time or effort. Aqara’s implementation of Matter is still too immature for a critical-use sensor.

I have not had any of the connectivity issues or reliability issues that some reviewers have had with this product. To date I have purchased 7 of these contact sensors, and they have all been rock solid, in fact theyve been some of the most reliable products in my smart home. If that changes I'll edit this review with an update. They all paired to Home Assistant using Matter quickly and without issue...except for one. One was actually giving me a decent amount of trouble with pairing. I ended up temporarily turning off my Wifi's 5Ghz network, factory resetting multiple times, and retrying multiple times, but it did eventually work, and that sensor has not given me any trouble since. The sensors are also pretty fast to update, and while it's a tad bulky for a contact sensor, the trade-off is that i've gotten great battery life out of them so far. I have no complaints

I bought this Aqara Door and Window Sensor P2 to help run some simple lighting automations in my room when the door is opened and closed, and I couldn't be happier with the results. This door sensor exceeded my expectations in every way. First, the integration with HomeKit was seamless and incredibly easy. Within minutes, I had it up and running, effortlessly syncing with my existing smart home setup. The sensor is highly responsive, providing instant feedback and ensuring my lights respond the moment I open or close the door. Installation was a breeze too. The compact design and clear instructions made it simple to set up, for anyone regardless of skill level. The quality and reliability of this sensor are outstanding, making it a perfect addition to any smart home. Overall, I highly recommend the Aqara Door and Window Sensor P2 for anyone looking to enhance their home automation system. It delivers on its promises and adds a level of convenience and efficiency that's hard to beat!

J’utilise principalement HomeKit, avec des appareils de différentes marques, et ce détecteur de porte Aqara P2 s’intègre parfaitement grâce à Matter. L’appairage est simple et rapide, et le capteur est immédiatement reconnu dans HomeKit sans difficulté. La détection est très réactive, aussi bien à l’ouverture qu’à la fermeture, ce qui le rend idéal pour les automatisations (notifications, éclairage, alarmes, etc.). La compatibilité Matter est un vrai avantage, car elle permet d’utiliser le capteur avec un écosystème multi-marques tout en conservant une excellente stabilité. Le capteur est discret, bien fini et inspire confiance côté qualité. Points positifs : ✔️ Compatibilité HomeKit native via Matter ✔️ Fonctionne parfaitement dans un écosystème multi-marques ✔️ Installation simple et rapide ✔️ Détection fiable et instantanée ✔️ Design discret et bonne qualité de fabrication Points négatifs : ❌ Nécessite un hub compatible Matter / Thread ❌ Un peu plus cher que les capteurs non Matter Conclusion : Un excellent détecteur de porte pour les utilisateurs HomeKit qui veulent une solution fiable, moderne et compatible avec plusieurs marques grâce à Matter. Très satisfait de ce produit.

当たり・ハズレあり、ハズレ率約２割。当たりは良好、ハズレは奇想天外。

Ya era hora de que salieran sensores que no necesitan el típico hub del fabricante o su app y que no cuestan 40€ o 50€. Es de Aqara pero no necesitas instalar apps de Aqara, ni dar datos personales a Aqara ni comprar hubs de Aqara. Es un sensor de contacto, uso típico en puertas, que funciona con Matter over Thread. Aunque no necesita hub de Aqara sí necesitas el hub Matter y Thread de tu plataforma domótica (un Echo 4, un Nest Hub 2, Homepod mini, etc.). Al grano: es muy recomendable, yo lo compré con la promo de lanzamiento del 20% de descuento (26 euros). Ha sido una compra casi a ciegas porque casi no hay reviews (salió el 6 de julio), pero está genial. Yo lo he probado con Google Home y el Nest Hub 2 que hace de controlador Matter y Thread border router. La instalación es básicamente darle a añadir dispositivo en la app de la plataforma domótica y escanear un QR que viene en el manual impreso. A la primera funcionando, parece que Matter ya empieza a funcionar como se espera. Si bien ya había un sensor de puerta Matter over Thread de la marca Eve, ese cuesta bastante más y usa unas pilas rarísimas difíciles de encontrar y que pocas marcas fabrican. El Aqara usa CR123A que, no siendo la más habitual del mundo, la venden hasta en el hipermercado de mi barrio. Evidentemente no sé cuánto dura la pila porque acaba de salir y Aqara no da una cifra porque depende del uso que tenga. Me acordaré de actualizar esto cuando se acabe. En teoría Thread no consume mucho, pero Matter lleva encima toda la capa de seguridad, cifrado, etc. que puede que gaste algo más. Incluyo una foto para que se vea el tamaño. Es grande, o más bien largo, para ser un sensor de contacto pero tampoco es inmenso y no queda mal en la puerta como se ve en otra de las fotos. El vídeo creo que es lo que más va a interesar. Es una rutina hecha en Google Home con el nuevo editor de automatizaciones. El starter es device.state.OpenClose, porcentaje 0 cuando está cerrado, 100 cuando está abierto. En acciones estoy controlando una bombilla Matter de la marca WiZ, así que es el caso mejor en cuanto retardo porque no hay nubes de terceros involucradas. De momento las pruebas que he hecho funciona bien, me he ido lejos del Thread border router (hasta cuatro habitaciones más allá) y también ha ido bien. Si noto algo raro actualizaré por aquí, pero de momento merece 5 estrellas y en dos días de pruebas varias no ha fallado ni una sola vez y ya he decidido pegarlo a la puerta. Antes no quería pegarlo por si acaso tocaba devolverlo :) Actualización (1 de agosto 2023): Anoche hubo un apagón eléctrico que duró unos segundos. Al Nest Hub que hace de Thread border router no debió sentarle bien (tampoco a un enchufe inteligente que se desconfiguró) y perdió conexión con el sensor. Con apagar y encender el Nest Hub la recuperó. Por lo demás en este mes no ha fallado ninguna vez la detección de apertura así que sigo recomendándolo. Actualización (1 de septiembre 2023): Sigue yendo perfectamente, ahora en Google Home se puede automatizar directamente desde la app también, no hace falta el editor de scripts como al principio. Por cierto, veo alguna mala puntuación de gente diciendo que no le funciona con un Echo Dot, ¡claro que no!, es necesario un router Thread y el Dot no sirve para eso, el Echo 4 (no dot) por ejemplo sí.

Feels and works solid, using it directly with SmartThings through Matter without Aqara hub. Installed using adheseve and it comes with additional extra slim magnet that may be handy depending on your door frame. Setup was super easy through QR code. Very stable connection. Only caveat is it does not report battery status. Battery life also seems good so far, using it for a year or more. Not sure why reviews are not hood here, but my experience was solid and positive.