Aqara Zigbee Temperature and Humidity Sensor-3 Pack, Wireless Thermometer Hygrometer for Home Automation, Remote Monitoring, Aqara Hub Required, Compatible with Apple HomeKit, Alexa, Works with IFTTT

The only brand of sensor I’ll buy anymore
I’ve found Aqara products to be good quality with all of the sensors I’ve tried from them. They seem to be reliable and power-efficient, which is critical when dealing with more than 2 or 3 sensors. I have a mix of sensors in my house, whereas I only put Aqara in my parents’ house which I did after my own trials. They haven’t changed batteries in the ~2 years they’ve been in place, but all are still online. Whereas some of my cheaper window sensors are dying in 6 months with nothing but updating temperature if it changes more than 1 degree.I would never use their hub for it, personally, out of a concern for both security and privacy, as well as not requiring a dedicated app for each brand of product. I don’t use anything that requires its own hub or internet connectivity, I just have Home Assistant running with a generic Zigbee dongle and it works great. I’ve never needed to, but it is possible you’d have to change the Zigbee channel you’re running on to work with certain devices.While it’s obviously not supported, I do have one of these in an out building which exceeds the high and low operating temperature range and it’s been working fine for about 18 months. If you live in an area with truly extreme highs or lows, you might have a different experience.

Great sensors, but all 3 had dead batteries
I’m a big fan of Aqara products. And these temperature sensors are great. I’ve used them before. This set of three that I bought would not pair to the hub at all, even if I put them right next to the hub. On a hunch, I changed the batteries and they worked fine. I guess these sat on the shelf too long. If you have trouble pairing, try changing the batteries before you send them back. With fresh batteries, these work great.

Don’t use them where they must be reliable and easy to access.
Why, Aqara? I ordered a new batch of Aqara Zigbee Temperature and Humidity Sensors. They have changed their design to a new style battery access hatch, which incredibly is even harder to open than the old style. The new access cover is almost impossible to remove without three hands. On top of that they added a metal battery retainer with a tiny Philips head screw. What didn’t they change? It’s still very finicky pairing to the Zigbee network, requiring a voodoo dance of repeating the pairing steps over and over gain until it miraculously connects. They also didn’t fix the fact that all the Aqara devices tend to fall off the Zigbee network and then need re-pairing. I know my Zigbee network is strong and not conflicted. Of the three sensors I purchased, they all initially paired, and then two fell off within two days. They are all physically side-by-side. Finally, they couldn’t re-design the idiotic slot on the battery access panel that no tools really fit into properly, and gets munged up after a couple of accesses.The worst of all of this? I acquired these to put in my beehives, to monitor environmental conditions year-round. So try doing the magic dance to pair these devices, removing and replacing the battery covers, all while covered with not-so-happy bees in a bee suit with fat gloves. Then go out twice in three days to try and get them re-paired again.When they work, I find them to be accurate – but I don’t anticipate they are going to work out in my apiary because they are just not reliable, and are terrible to access the battery.

I have these for some time now. I use them in my fridge, deep freeze and garage. They are hooked up using homeassistant not the aquara ecosystem. Even though the state do not use them in a deep freeze, mine has been working fine for months on end. The battery reading is always low, but hasn’t died on me yet. The one I have in my garage is subjected to -40C during the winter time and has no issues with connectivity and reporting back which is amazing! Only thing I don’t like is the high price you have to pay for these. These are not wifi (Which I wanted) they are zigbee.

Good product for the price

First, they do work, are easy to pair on a Zigbee setup, and with a small size can be placed almost anywhere. They report temperature, humidity, and pressure. In my case I need 2 to make my thermostat a bit more intelligent, via Home Assistant, by controlling certain aspect base on 2 more room temperature and humidity that with only the main thermostat it could not figure. Those sensors added to my setup help me with that. The 3rd sensor is for a basement area to help control humidity whereas on top of a dehumidifier on schedule to run a cheapest electricity time, the sensor would help trigger additional time anytime some thresholds are met. So, for all of this, they work well and was not complicated to pair and use for my programming.Where it loses some point is of the 3 that came in my package the batteries were at 80%, 73%, and 59% respectively. Although they are meant to last long, that still means one of them is a bit over ¼ done and the other nearly ½ done of that available time. Also, one sensor, the basement one, which I measured to be less than 40ft away although downward from my antenna it has lost signal a few times now. Going there single pressing the button resume it but I feel it should not as other devices in the same vicinity have not had this issue.