Smart Temperature Humidity Sensor Works w/Alexa IFTTT, 1/4 Mile Super Long Range Wireless Digital Hygrometer Indoor Thermometer Humidity Meter Temperature Humidity Monitor Sensor -YoLink Hub Required

I love this device I have several of them and they work fantastic! You can literally have them in refrigerators freezers place them outside put them just about anywhere. The long range connectivity over its signal to the hub is amazing and I've never had a connection issue. You can set up temperature alarms humidity alarms and keep track of what it is you need to know that data on. The app is simple to use and shows you all the data over a logs and graphs for visual experience. Only downside to it is sometimes you end up buying an extra hub due to the way they package these. I just keep the hub as a spare for down the road. I'm hoping in the future they continue to allow us to purchase these individually without the hub.

I have purchased 7 of these by now. They work great! The app is easy to use, the range is excellent and the screen easy to see from a distance. Battery life is good, it’s been 5 months and I have not needed to change them yet. I love being able to view the temps on several freezers and refrigerators all on one screen and it will alarm you, if temps are out of range. Great product and a value for the low price.

The YoLink temperature humidity sensor, which requires their inexpensive YoSmart hub, returns accurate temperature and humidity readings which is the starting point for any home integration system (through IFTTT, in my case). It is easy, almost trivial, to set up (within minutes of opening the package). This at a price much lower than competitive systems. These guys know what they are doing.I use their sensor as a trigger in an IFTTT applet that turns my ceiling fans on and off depending on temperature and humidity. Works great; the ONLY issue is that their server response time is a bit slow so that system does not trigger immediately. They are aware of this and, based upon their previous response to my suggestions, I expect that will be fixed very soon.Their service is outstanding; they not only answered my calls and email but also updated their app based upon my suggested improvements. And that update happened within days of my suggestions!Very highly recommended.

The sensor works just as it should. The postal service delayed shipping for short period and when I inquired the seller went out of their way to help and they were fast about it, even though it really wasn't their fault.

This thermometer has been a game-changer! After recently dealing with a frozen pipe, I placed it in my wall near the pipes, and now I can monitor the temperature from my phone without crawling into the crawlspace. The LoRa connection works flawlessly, even in hard-to-reach areas, and I love that it doesn’t rely on WiFi. The alerts give me peace of mind, and setup was simple. Highly recommend for anyone needing reliable remote temperature monitoring!

I use these temperature / humidity sensors in various locations of interest, such as certain rooms that don't cool as well, or my attached garage. They track the temperature and humidity at 1 hour intervals, which is enough to have a good idea of how the temperatures range in those rooms, but not super fine-grained as I might like for a sensor such as this. Due to this, it loses a star. There is a more expensive version of this unit (the "X3") that does more frequent samples, but it costs quite a bit more. I think both units need to be bumped down in price. Regardless, I do still love the long range/stable connection of the LoRa tech; these sensors are super reliable. And I like the built-in screens so I can see the current data without always having to open the app if I'm already in the room with them.I will plug, as I do in all my YoLink reviews, that I anxiously hope that one day (preferably one day soon) YoLink will come up with support for local-only connectivity so my sensors don't require a functioning Internet connection to work, but until then, I still prefer these to most other sensors I've tried in the past due to their great range and consistent reliability.All in all, I really like these sensors. However, I think a more reasonable price would be in the $30-$35 range. $50 msrp / $40 sale price is a little steep for these IMHO.

We have a chest freezer since we buy meats usually in bulk. We have had one instance where the freezer went out and we didn't notice for 24-ish hours and all the meat was spoiled. This sensor connects right to the phone and provides me alerts. It couldn't be more simple to setup and it gives a nice range of temperatures to set the alerts to. I would definitely recommend.

I find temp sensors very useful, have 1 in freezer, 1 in garage and 1 in living room. Had issue with delivery of 1 temp sensor, USPS problem ; received excellent customer service from vendor to resolve. Highly recommend