AqaraZigbee Temperature and Humidity Sensor, Wireless Thermometer Hygrometer for Home Automation, Remote Monitoring, Aqara Hub Required, Compatible with Apple HomeKit, Alexa, Works with IFTTT

Work very well with my Home Assistant system to monitor temperature and humidity in freezers, refrigerators and to monitor the temperature in the room with my fireplace (to activate my furnace fan for additional circulation). Battery life is very good with the standard battery.

I got these because Aqara has a good reputation for working seamlessly with generic Zigbee hubs and Home Assistant. I don't use the Aqara hub or app at all.Pros:- They look quite good attached to a wall. (Vastly better than the big orange plate you get with the Sonoff ones.)- They're reliable. I almost never get disconnections. It can take a while for them to come back after a power outage shuts down the hub, but they always come back.- They're fast. Temperature changes get posted very quickly when they happen. Within a few seconds, usually.- They're efficient. If the temperature is stable, they'll only ping in once an hour or so.Cons:- None to speak ofI've had one installed in my bedroom for six months and it's reporting about 60% battery remaining. I'd like to see that closer to 75%, but I also don't know how accurate it is.

I bought this device along with the hub with the hope of integrating my Alexa thermostats with a sensor. My goal was to address the issue of one of my kids' rooms being excessively cold, and I wanted the flexibility to adjust the sensor to a different room than where the thermostat was originally placed.Having used Nest devices in the past, which offered a convenient sensor to adjust room temperatures, my expectations were high. Unfortunately, this product falls short. Instead of providing the ability to control the temperature in specific rooms, it merely notifies me of the temperature in the designated space.The user experience (UX) was clunky, and I found myself fussing with the setup, including the addition of the Alexa skill. In hindsight, I regret not sticking with Nest Thermostats entirely, as they had previously met my needs more effectively. Now, I find myself navigating a rabbit hole in search of a solution to the initial problem. Overall, not the seamless experience I was hoping for.

Easy to install. Works perfect.

I love how easy and tiny they are! Battery still hasn’t died on me. Always stays connected with hub and HomeKit! I have one on the ceiling in each room. This is my best friend when it comes to bathroom. Once the humidity hits this % then it automate the switch to turn on bathroom fan! When it drops below % then it turns off the bathroom fan!I found this to show more accurate temperature and humidity than HomePod does. Plus HomePod doesn’t work with automation. This one does! HomePod is very slow with updating while this is rapid and consistent!

No problem with outdoors use.edit:I bought two of these, one in Nov 2022 and one in March 2023. The first one is working well and I have not had to touch it since I first set it up.The second one is problematic. The original battery lasted only about 2 1/2 months. I replaced it with a fresh Energizer battery and it lasted about one week, going from 3.2 V to 2.4V in that time. I just replaced the battery again and in less than one hour it went from 3.2 V to 2.9 V. This may be due to a bad batch of batteries, but I went with a brand name and shouldn't be seeing this. I see that other people are also complaining about battery life, so I have to conclude that the 2032 battery is apparently a poor choice.To make matters worse, the battery hatch is the stupidest design possible. The unit mounts to the wall by means of an adhesive ring attached to the battery hatch cover. The battery is not held in place by anything other than the hatch cover. That means that it is impossible to put in a new battery without removing the hatch cover from the wall. A small piece of tape can hold the battery in place, but there should have been a lip on the battery well to keep it from falling out. Not a fatal flaw, but a major inconvenience.Additional edit:I replaced the Eveready battery with a Duracell battery. The battery started with a no-load Voltage of 3.3V. After six hours it was down to 2.9V. After 9 hours home-assistant was reporting that battery capacity was down to 48%.So now I have spent as much on batteries that I have no other use for as I did on the sensor itself.Amazon closed the return window after 30 days, and the manufacturer says to contact the seller for returns, refunds and replacements. I've been had. Don't make the same mistake.

We’re very easy to add to M3 Hub. Sensor seems pretty accurate but need more testing. Using them for bathroom fan automations.