Aqara Zigbee Door and Window Sensor, Wireless Contact Sensor, Home Automation, Requires Aqara Hub (not 3rd-Party), Zigbee Connection, Kid Safety, Compatible with Apple HomeKit, Alexa, IFTTT

I have an August lock that is supposed to provide some "door ajar" alerts. It never does, and the sensor does not integrate well with HomeKit. Recently, I put down a door mat that catches on my door and leaves it open, and I've had a few times where I've left the house and left my door wide open because I'm used to it closing behind me.I already have a few Aqara sensors around my house for leak detection, and a door sensor on a deck door that is harder to close and can get left ajar accidentally, so I decided to get another sensor for my front door.This sensor is perfect! It was easy to setup and get connected to my existing Aqara hub, and it works very well with HomeKit. I get notifications every time the door is open or closed, and in addition, priority alerts when the door is left open past my timeout setting (two minutes).Installing it was also a breeze, and one of the sensor parts is small enough that it fits on my recessed doorframe with just enough distance between the sensors for it to be effective detecting opening and closing. My Zigbee hub is close by, so it does not need to communicate over a long distance, which should probably help with battery life - however, the sensor on my other door is on a second floor and it communicates perfectly, and I have only had to replace its battery twice.I continue to be pleased with the Aqara ecosystem!

The Aqara Door and Window Sensor Kit is a simple but highly effective smart home accessory. Setting it up was incredibly easy, especially if you're already using the Aqara Hub or a compatible smart home ecosystem like Apple HomeKit. Within minutes, I had these sensors installed and working perfectly.The sensors are small, discreet, and blend seamlessly with my doors and windows. They are very responsive—notifications are almost instant whenever a door or window is opened or closed. I also love how they integrate with other Aqara devices and automations. For example, I’ve set them up to turn on lights when a door is opened, and it works flawlessly.The battery life is excellent as well, and I appreciate the low-maintenance design. Plus, the adhesive backing makes installation a breeze without the need for screws or tools.If you’re looking for a reliable, affordable way to enhance your home security or smart home setup, the Aqara Door and Window Sensor Kit is an excellent choice. Highly recommended!

Works great with Home Assistant and has really fast and reliable updates.I have a bunch of the cheaper Tuya WiFi sensors and find they're much slower & less reliable than this one.I wish it took a more common battery than a CR1632, but that's my only complaint.Caveat: I've only installed one, but will be installing about 18 total. I'll update the review if I encounter issues with the larger number of sensors working together.

These devices where quite easy to set up, and work flawlessly in my Smartthings environment. I'm very comfortable setting up custom devices handlers and the one for this are well written. I absolutely love the size. I'm using these for window sensors and you barely even notice them - all other sensors I've seen or tried are enormous compared to these. The magnet is quite strong and I have not had a single false reading since using.Now the potential problem. The mfg quite clearly states you must use their hub and they are not compatible with any other hubs - this is a hint you need to consider before purchasing.Xioami / Aqara devices use a partial implementation of the Zigbee protocol and as long as you have no other Zigbee devices, capable of acting as a repeater in your network, things will work fine. I don't so these work brilliantly.The decision to make is whether or not you will be able to limit Zigbee devices in you smart home to battery only devices (battery only can not be a repeater). I have implemented Z-wave and Wi-Fi devices so this isn't a problem for me. I don't use any smart light bulbs, kr other Zigbee devices (I replaced all my switches instead), but with how technology changes it hard to say if this will be true long term.If you currently have Zigbee devices or plan to, skip these. If you don't have, and don't plan to, these things are cheap, powerful and arguably the best looking window sensors on the market and definitely worth considering.