--- product_id: 537683240 title: "Door and Window Sensor P2, Contact Sensor with Remote Alarm" brand: "aqara" price: "1601442β‚«" currency: VND in_stock: true reviews_count: 13 category: "Aqara" url: https://www.desertcart.vn/products/537683240-door-and-window-sensor-p2-contact-sensor-with-remote-alarm store_origin: VN region: Vietnam --- # Real-time open/close alerts Long-lasting CR123A battery Matter over Thread connectivity Door and Window Sensor P2, Contact Sensor with Remote Alarm **Brand:** aqara **Price:** 1601442β‚« **Availability:** βœ… In Stock ## Summary > πŸšͺπŸ”” Stay ahead of home security with smart alerts that never miss a beat! ## Quick Answers - **What is this?** Door and Window Sensor P2, Contact Sensor with Remote Alarm by aqara - **How much does it cost?** 1601442β‚« with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/537683240-door-and-window-sensor-p2-contact-sensor-with-remote-alarm) ## Best For - aqara enthusiasts ## Why This Product - Trusted aqara brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Robust Thread Protocol:** Experience ultra-low latency, enhanced stability, and energy-efficient connectivity. - β€’ **Voice-Activated Alerts:** Stay effortlessly informed with Siri, Alexa, and Google Assistant voice notifications. - β€’ **Precision Status Monitoring:** High-precision Hall sensor delivers instant, reliable door/window open-close detection. - β€’ **Seamless Matter Integration:** Unlock next-gen smart home control with native Matter support across Apple, Alexa, Google & more. - β€’ **Privacy-First Local Automations:** Automate your home offlineβ€”secure, fast, and uninterrupted even without internet. ## Overview The Aqara Door and Window Sensor P2 is a compact, high-precision contact sensor designed for smart homes. Featuring native Matter support over the Thread protocol, it ensures low-latency, stable connectivity and broad compatibility with Apple Home, Alexa, Google Home, and Samsung hubs. It provides real-time open/close status alerts, supports local automations without cloud dependency for enhanced privacy, and integrates voice assistant notifications. Powered by a long-lasting CR123A battery, it offers reliable security monitoring with easy installation. ## Description Buy Aqara Door and Window Sensor P2, Contact Sensor with Remote Alarm | Matter Over Thread, Requires 2-in-1 Matter Controller & Thread Border Router, Supports Apple Home, Alexa: Hubs & Controllers - desertcart.com βœ“ FREE DELIVERY possible on eligible purchases Review: It works well with SmartThings, but not with Google Home. - 05/10/24 Edit: I wasn't able to establish a proper connection between the sensor and Google Home at first using Google Nest Hub Maxes. After connecting the sensor to Google Home, the sensor would show that it was offline. My solution to this was to bring together and separate the sensor and the magnet several times after adding the sensor to Google Home. After doing this, the sensor finally appeared as online on Google Home. 5/17/24 Edit: Two sensors were unstable with my Google Nest Hub Maxes, despite the closest Hub Max being only about three feet away. It kept appearing as offline and online randomly. I also tried connecting them to an Aqara Hub M3 (about four feet away) and an Aeotec SmartThings Home Hub (about four feet away) with no success. I connected them to a Samsung SmartThings Station (about seven feet away). So far for the last three days, the connection between the Samsung SmartThings Station and the sensor has been stable with no issues. Review: Constantly Offline - I like Aqara products, have been using smart switches, wireless mini switches, motion sensors, wireless relays etc. Have around 50 devices installed at home. In the past i never had issues with its Zigbee devices. However its newer line of Matter devices (locks and Sensors) are not reliable. With time its U200 lock reliability has increased, no problems when used with the Aqara app or HomeKit. However not fully satisfied with Alexa integration, it is slow to react and disconnects continuously. The P2 window sensor does not work at all in any ecosystem, not even with Aqara. My experience is that it gets disconnected every other day. Every other day I had to reset it. I finally gave up and no longer use it. I realy do not know how this sensor could be used in an alarm system where reliability is paramount. ## Features - [Native Matter Support over Thread] As one of the first sensors to support Matter, the P2 supports access to Aqara Home, Apple Home, Google Home, desertcart Alexa and Samsung . Meanwhile, as a sensor based on the Thread protocol, the P2 provides enhanced connectivity, low-power consumption, more stability, and low latency. (**Note: 2-in-1 Matter Controller & Thread Border Router is required and sold separately) - [Open/Closed Status Monitoring] With a built-in high-precision Hall sensor, the Aqara Door and Window Sensor P2 can detect the opening and closing status of doors, windows, and drawers precisely. Once the sensor is triggered, it will send real-time alert notifications to your smartphone whether you're at home or away, ensuring you're always aware of any potential security concerns. (*Note: To ensure a stable connection, place the Door and Window Sensor P2 main unit between the accessory unit is no more than 22 mm ) - [Local Home Automations] You can integrate the Door and Window Sensor P2 with your smart home ecosystem to enable advanced automations like adjusting thermostat settings or activating security cameras when a door or window is opened. Moreover, the automations are executed without the cloud, which can protect the user’s privacy and will keep working even if there is no internet connection. - [Voice Alerts and Status Notifications] The Aqara Door and Window Sensor P2 supports Apple Siri, Alexa, and Google Assistant. With these voice assistants, you can receive alerts about events such as door entries, or ask whether a door is open, allowing you to effortlessly monitor your home. - [Matter Compatibility] A Matter Controller & Thread Border Router 2-in-1 is required to enjoy seamless integration with a Matter-enabled smart home ecosystem. Currently, the following hubs are tested, but new hubs will be added over time. Aqara Home(Hub M3), Apple: Apple TV 4K (3rd gen, 128 GB), Apple TV 4K (2nd gen), HomePod (2nd gen), HomePod mini | Samsung: Hub v3, Aeotec Hub v3, | desertcart: Echo (4th gen) | Google: Nest Hub (2nd gen), Nest Hub Max, Nest Wi-Fi Pr - [Easy Installation & Long Battery Life] With its compact design and adhesive back, the sensor is easily integrated into any interior. Additionally, equipped with a powerful CR123A battery, it provides uninterrupted protection with infrequent replacements.* The battery life may vary depending on the border router and Matter app the sensor is connected to. Please ensure to use a CR123A battery when replacing, as incompatible models may cause failure or malfunction. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BTL8B72D | | Best Sellers Rank | #21,955 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #32 in Home Automation Hubs & Controllers | | Brand | Aqara | | Brand Name | Aqara | | Customer Reviews | 3.6 out of 5 stars 1,116 Reviews | | Included Components | Sensor Accessory Unit Γ— 1 | | Item Dimensions | 3.03 x 1.32 x 0.87 inches | | Item Highlight | Matter Over Thread, Requires 2-in-1 Matter Controller & Thread Border Router, Supports Apple Home, Alexa | | Item Type Name | Door and window sensor | | Item Weight | 0.04 kg | | Item dimensions L x W x H | 3.03 x 1.32 x 0.87 inches | | Manufacturer | Lumi United Technology Co., Ltd | | Model | DW-S02E | | Mounting Type | Door Mount | | Number of Items | 1 | | Part Number | DW-S02E | | Specific Uses For Product | home security, smart home integration, voice assistant integration | | Style | Door and Window Sensor P2 | | Style Name | Door and Window Sensor P2 | | UPC | 192784000847 | | Unit Count | 1 Count | | Warranty Description | 1 Year Warranty | ## Product Details - **Brand:** Aqara - **Item Weight:** 0.04 kg - **Item dimensions L x W x H:** 3.03 x 1.32 x 0.87 inches - **Mounting Type:** Door Mount - **Style:** Door and Window Sensor P2 ## Images ![Door and Window Sensor P2, Contact Sensor with Remote Alarm - Image 1](https://m.media-amazon.com/images/I/612VSU7yrgL.jpg) ## Questions & Answers **Q: Does this product come with a 2-in-1 Matter Controller & Thread Border Router?** A: No, 2-in-1 Matter Controller & Thread Border Router is required and sold separately **Q: How can I ensure a stable connection for the Door and Window Sensor P2?** A: To ensure a stable connection, place the Door and Window Sensor P2 main unit between the accessory unit is no more than 22 mm .And make sure the Door and Window Sensor P2 and the router are connected to the same local area network (LAN). **Q: What type of battery should I choose for this sensor?** A: To ensure optimal performance, please ensure to use a CR123A battery when replacing, as incompatible models may cause failure or malfunction. ## Customer Reviews ### ⭐⭐⭐⭐⭐ It works well with SmartThings, but not with Google Home. *by A***N on April 30, 2024* 05/10/24 Edit: I wasn't able to establish a proper connection between the sensor and Google Home at first using Google Nest Hub Maxes. After connecting the sensor to Google Home, the sensor would show that it was offline. My solution to this was to bring together and separate the sensor and the magnet several times after adding the sensor to Google Home. After doing this, the sensor finally appeared as online on Google Home. 5/17/24 Edit: Two sensors were unstable with my Google Nest Hub Maxes, despite the closest Hub Max being only about three feet away. It kept appearing as offline and online randomly. I also tried connecting them to an Aqara Hub M3 (about four feet away) and an Aeotec SmartThings Home Hub (about four feet away) with no success. I connected them to a Samsung SmartThings Station (about seven feet away). So far for the last three days, the connection between the Samsung SmartThings Station and the sensor has been stable with no issues. ### ⭐ Constantly Offline *by K***S on January 14, 2025* I like Aqara products, have been using smart switches, wireless mini switches, motion sensors, wireless relays etc. Have around 50 devices installed at home. In the past i never had issues with its Zigbee devices. However its newer line of Matter devices (locks and Sensors) are not reliable. With time its U200 lock reliability has increased, no problems when used with the Aqara app or HomeKit. However not fully satisfied with Alexa integration, it is slow to react and disconnects continuously. The P2 window sensor does not work at all in any ecosystem, not even with Aqara. My experience is that it gets disconnected every other day. Every other day I had to reset it. I finally gave up and no longer use it. I realy do not know how this sensor could be used in an alarm system where reliability is paramount. ### ⭐⭐⭐⭐⭐ Excellent Door and Window Sensor that works well in Home Assistant and HomeKit *by S***Z on February 3, 2026* 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. ## Frequently Bought Together - Aqara 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 and SmartThings - Aqara Smart Hub M3 for Home Automation, Matter Controller, Thread Border Router, Features Zigbee, Bluetooth, Wi-Fi, PoE, IR, Supports Alexa, Apple HomeKit, SmartThings, IFTTT --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vn/products/537683240-door-and-window-sensor-p2-contact-sensor-with-remote-alarm](https://www.desertcart.vn/products/537683240-door-and-window-sensor-p2-contact-sensor-with-remote-alarm) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-09-22*