SwitchBot WiFi Thermometer Hygrometer 3 Pack with Hub Mini, IP65 Indoor Outdoor Thermometer Wireless, Humidity/Temperature/Dewpoint/VPD/Absolute Humidity Sensor with Smart Alerts, Works with Alexa

I have tried a couple of brands of smart thermometers (Aqara and SensorPush) and I found these Switchbot sensors to be the best bang for the buck vs those other brands. The Aqara sensors kept randomly dropping their connection and the Aqara app was not very well polished. The SensorPush sensor and app work great, but they cost a lot more and do not sync with the Apple home app.The Switchbot sensors are easy to setup, and so far the connectivity has been 100% reliable for me (two months in) and the temperature readings seem accurate. They typically match almost perfectly with the temperature on my SensorPush sensor . The Switchbot app takes a little getting used to at first, but once you have it down it is a very data-rich and intuitive interface that I have really enjoyed using (especially over the clunky Aqara app). I use the Switchbot app to look at detailed temperature data, but I also have it synced up to Apple Home via the Switchbot Hub 2 so I can see the current temperature in the Home app. I do wish the Home app showed me the temperature history, but I don't mind using the Switchbot app for that instead. If you are a fan of the Apple Home app to control your smart home I think these temperature sensors are the best ones you can get!The temperature sensors and Hub 2 are the only Switchbot products I currently have, but based on my experience thus far I am sure they will not be the last Switchbot products that I purchase. I already plan to get more temperature sensors in the future. I highly recommend these!

I purchased this to track the temperature in a portable cooler while multi-day camping in 80+F weather. I'm using a Bodega battery powered cooler that reports its temperature on its control panel. Since the cooler's temperature sensor must be inside a cooler wall, I wanted to know what temperature the food at the top middle of the cooler was maintaining while camping.In testing the SwitchBot at the bottom of the cooler, its measured temperature agreed with the cooler's measurement after a long equilibration period of 1hr as the thermometer adjusted from 79F to 32F. The cool down time was measured from data recorded in the SwitchBot app. Overnight measurements averaged 32F in a range from 30-34F in perfect agreement with my expectation and the 32F set on the Bodega cooler.The SwitchBot app has a logging function for tracking temperature changes. The thermometer stores measurements until the app connects and downloads the stored data. It is not necessary stay connected to the bluetooth to track recent temperature history. I'm not sure how long 'recent' is but it seems long enough for my purposes.Overall, the app works well on my iPhone. It connects to BLE quickly and provides displays of up to 31 days. I am satisfied with the purchase for my use.The SwitchBot thermometer also agrees well with two other trusted thermometers at 78F without calibration. When I initially received the thermometer, I thought that the thermometer required calibration of up to 4-6F after a 30 min wait both at room temperature and with the suggested 30 min time. I left it overnight and the next morning noticed that I needed to eliminate that calibration to match my other thermometers. An equilibration time of 30 minutes might be appropriate for small changes in temperature, but a much longer equilibration is required for large changes. My thermometer does not require calibration.

I bought these to integrate into Home Assistant to monitor the temperature in my kids' bedrooms and they work great. I was able to pair them up to my phone easily after downloading the app. One thing that drove me nuts about other products was the lack of consistency between multiple units. Thankfully for these, they were accurate and had consistent temperature readings across all 3. I was able to use the data from these inside of Home Assistant to turn on the AC to make sure my kids' rooms didn't get too warm. Highly recommend, even without Home Assistant.

***1 month update: basement freezer sensor is no longer connected. I didn't get a notice that it disconnected, I just happened to notice that it was no longer reading. I even set it up to notify me for low battery sensors. I got no notifications at all but after replacing the batteries, it seems to be functioning correctly again. ***Item was packaged well and included simple instructions for setup. I noticed right off that the cords that the minihub uses are the old style USB connections and the package did not include a power adapter, which to me is absurd. If I paid for a working item but the item I received lacks the ability to even plug into a power grid, obviously I did not get a working item for the price I paid. I knocked a star for these reasons. Other than that, the item works well. It was just a bad first impression and I was lucky to have an extra adapter handy or I would have had to order and wait on that item as well before being able to use the remote thermometer I desperately needed to more accurately monitor our large tortoises' house in particularly bad weather. The items create a temp graph as they go, allowing me to see trends in the heating elements during the day and night. These are way more accurate than the brand I was using before. I threw the other two sensors into my deep freezers and now will hopefully get alarms before I get spoiled food in the event of a freezer failure. I like that I was able to integrate it easily into Google Home and can now ask the hub or my phone, "What temp is the basement freezer" or "What temp is the garage freezer" and it will instantly tell me. This was our first automated purchase and for the most part, we are very pleased with it.