Aqara Zigbee Door and Window Sensor 3 Pack, Wireless Mini Contact Sensor, Home Automation, Requires Aqara Hub, Zigbee Connection, Kid Safety, Compatible with Apple HomeKit, Alexa, Works with IFTTT

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 perfectly. Placed it in my entrance door, so I could automate the lock to go into the secure position when closing the door. This was a pretty good convenience. I am going to get a few more for other doors and windows!

I have about 30 of these sensors deployed between a couple of locations with Home Assistant and Zigbee2MQTT. They've been working without error for a year+ at this point. I've had...maybe three times I needed to visit a sensor to re-pair it to the Zigbee network. Fortunately, Z2M reports unavailable so I've never been surprised by a sensor being offline. Response times are incredibly quick, within a second. Battery life is excellent. Average of about 80% left on sensors that have been in service for a year. Included mounting stickers are more than sufficient. These live on some exterior doors and have gone through crazy temperature and humidity changes without issue.Overall, exceedingly pleased.

I bought these because they're incredibly tiny and Aqara has a good reputation for seamless integrations with Home Assistant. (I don't use an Aqara hub or Alexa.)Pros:- They're very unintrusive. Being so small and rounded, you hardly even notice them.- Native Zigbee, so super low power and no proprietary hub needed.- Battery life, at least so far, has been decent: reporting about 65% after six months of use.Cons:- They were harder to connect than other Zigbee devices, requiring me to bring them very close to a relay or, if I'd already attached them to the door, plugging in a Zigbee outlet nearby temporarily.- They tend to disconnect slightly more often than other Zigbee devices, even in areas with very strong mesh coverage.Ultimately, I decided to go with Sonoff instead for the rest of alarmed doors. They're quite a bit larger, and the boxy shape catches the eye more, but they're much more reliable. And for something connected to my home security system, reliability is king.For interior doors that don't matter so much, I prefer these for their small size. They're great for non-critical automations like turning on the bathroom fan when the door closes, or adjusting thermostats depending on which doors are open.

Works reliably and as intended. It was easy to pair and easy to attach to my door. I use these for home assistant with zigbee

I use these connected to my Home Assistant automation, and mainly got them to use on my downstairs upright freezer. We've had ...um... issues with some people closing the freezer door after using it, and I have HA send me a notice if the freezer door is open more than 30 seconds. There are many other uses for this device, of course, but this has saved me more than once now with having that door left open. Aqara makes some amazing little devices like this including temp sensors (one of which is in that same freezer and alerts if the temp gets too high), and this thing is very small, and the battery seems to last forever. And the price is very reasonable, I'll be buying more as I find the need for them.