Smart Wireless Temperature / Humidity Sensor Wide Range (-22 to 158 degrees) for Freezer Fridge Monitoring Pet Cage/Tank Monitoring Smartphone Alerts, Works with Alexa IFTTT, 2 Pack - Hub Included

If this is the kind of device you are looking for to be able to remotely view temps and humidity this is the best one I have used so far. Even better than so called name brands. I dont get all kinds of false alarms. The interface is easy to use but not stripped down to bare minimums. Most importantly, it just works, worked easily practically out of the box. No drama, no fees. Its great.

I have tried them all. This actually works. The temperature displayed on most freezer or fridges is not the actual temperature inside. This will fix that problem. And if someone leaves the freezer door open in a hot garage….this will let you know before it all goes bad. Truly a great investment. I needed you years ago!

This works well to monitor fridges or freezers. I set the range that I consider good and get alerted when it’s exceeded. Does exactly what I wanted as I don’t have to check on the freezer and can see temps and alerts even when not at home. The app could be much more intuitive than it is, but once you figure out where everything is, it’s fine.

I use these for the deep freeze I put my breast milk in. It helps me keep track of the temp and notifies me when it gets too high.it does connect to Wi-Fi so if we lose power it wouldn’t work but luckily I have a backup plan. I recommend these they have been great for me so far for peace of mind.

I must be honest and say I was a bit skeptical about this product at first (placing a wifi device inside a sealed metal box), but let me tell you, it really works! Once you get the thresholds set it will send you a notification directly to your phone (via email) when the temperature or humidity has exceeded your setting. Be mindful of your defrost cycle. It will send false readings if you have your threshold set to low. Once I got that figured out, it has worked flawlessly. You can monitor it in real-time via a graph in the app. Super impressed with this little device. It definitely gives peace of mind that my freezer packed with venison will be safe and sound on my next hunting trip.

I am really loving this temp monitoring system. So happy to be able to set a high and low temp and if outside of the range I get an alert and email. Hopefully this will help save my food if my appliances arent sealed or arent functioning correctly.

I can leave my house and know in an instant whether or not my heating system is working properly after having had problems in the past. Great product. Excellent price.

Temp/Humidity sensor easy to set up. Had no real trouble getting system up and running. Took another thermometer and placed it next to the YoLink T&H sensor in my refrigerator and the YoLink is off by about 2 degrees. With all that said the 2 degrees calls an alarm because the range of temps for the fridge is 34 to 38 degrees F I even dropped the operating temperature and increased the alarm high a degree or 2 and I still get a lot of notifications. Next I tried to calibrate the sensor in the app, changed the calibration by 2 degrees and saw not change in the reading. I really wanted the sensors so I can monitor the temperatures the warning is a bonus...if I can get it to calibrate.

We travel during the winter and want to insure our home is above freezing. So far the sensors and program are working well

In AZ, barely open garage freezers can become very costly. We have had to refill our entire vertical storage freezer twice this year and with 2 cooks in the house, theres lots of opportunity for mishaps. This has been a welcome solution. Pros - Peace of mind. - Once setup, has worked reliably without hassle. - Has already paid for itself several times over in saved food. - Clean app interface (although some unnecessary backtracking involved). - Alerts trigger quickly and loudly on connected devices. Cons - Mobile apps only, no desktop application. - More customization would be desirable. Notes - My observations are all made using Mac devices (iPads, iPhone, Macbook) - This is not a quick setup, should allow at least 1.5hr for setup, testing and customization. - Recommend do not try to setup wirelessly, plug hub into router during setup process. - Installed on my own, but they offer assistance if needed. - I keep the alert range set @ -10F -- +18F to allow for freezers to be loaded/unloaded without alerts (temps can be adjusted to 1/10 of a degree). - May be a good low cost alternative for small business owners. Overall, very happy with this system, the 2 sensors are monitoring 2 freezers in our garage and I will be ordering more sensors soon for indoor fridge and perhaps for terrariums/vivariums.