YoLink 2-Pack X3 Version Temperature Humidity Data Logger, Longest Wireless Range, 5+ Years Battery, Emails/Text/App Alerts, Alexa, Best Freezer, Greenhouse Monitor. Hub Included

I loved how easy the Yolink Hub as to set up (used Ethernet connection), and the App was easy to understand. Had no problems pairing and binding the Thermostat/Humidity modules with the Hub. Just scan the code on the modules from the App, and your off and running. The modules also displayed accurate values. Will be getting more modules, now that I see how nice this system is. Great product, will be expanding the smart system.

The ease of use on the app is incredible. I don’t know that they could have made it much simpler. A quick login and connect, as long as it’s semi near a router, the range is incredible. The quality feels sturdy, not cheap. It’s small enough that it’s not in the way, but accurate enough that I have no doubt that we would know right away if our freezer was going out. Overall, in the short time that we’ve owned this product, I’m very impressed with its performance.

This was easy to set up and the temps are virtually the same as my Thermapen which has a certified accuracy of 0.5 F, and both of them read the same 1/10 degree temperature. It alerted me to a door that was left open, and it tracks the refrigerator temp well.

This device came with a hub and 2 thermometers that act as sensors and transmit to the hub. This set up works perfectly and I bought it to monitor a mountain property where the temperatures do drop as much as below zero Fahrenheit. I had to cal the customer service 1-800 to get some help but it took them 3 minutes to help me.Great product worth the money and so far seems very reliable. It does update with the correct temperature of the environment it sits at every hour which seems fine for our use.

I've been using this for a week to monitor the temperature in my large freezer as well as my refrigerator.My freezer alarm stopped working and we had a partial meltdown so I decided to get these wifi connected temperature sensors.Connecting them to the hub which I plugged into my router and then connecting the sensors to the hub and the app was very quick and easy.What I really like about them is the ability to monitor the temperatures when away from home.I have not tried using the alarm function in the app and if I do I will update my review.The next thing I want to do is check the accuracy of the sensors to see if they need to be recalibrate.I gave it 4 stars because it doesn't come with anything to mount the sensors with. The back of the sensors have a hole for using a hook, but no hook or magnet, so for now I have the sensors resting on shelves.

Easy to install hub and add devices. Really nice app. Notifications work really well. Especially like the real-time charts. Have ordered a bunch of other devices from this company I like it so well.

This refrigerator/ freezer thermometer works great. I had two concerns about this product 1: will it really work wirelessly through a metal box and 2: the information says the thermometer has a range that only goes to 14 deg F. The results are 1) It does work great through our LG French door Refrigerator and Freezer. And 2) The thermometer is accurate down to at least -5 deg F (that is as low as I tested it). The alarm settings are a little tricky to find, but you can set both a lower and upper limit. Just make sure that you get the triggers set wide enough before you enable SMS alarms or you will run through the 20 messages / month quickly.

These work so well and are so easy to setup! Set it and forget it! I’ve already had a few instances where my wife or I have forgotten to shut our deep freezer, and we get alerted before everything defrosts. Those instances alone have made this purchase worth it! Highly recommend!

Using these monitors in my stand alone freezer and the other is in the freezer within the refrigerator. Both work well at those cold temperatures and provide a good strong signal with the hub. Easy to setup and the phone app is handy as you can program in alarm setpoints.

Very easy to set up and works even in a freezer that’s in the garage. Small price to pay compared to what a full freezer of meat costs to replace!I just ordered another two sensors, one for the fridge and one for our rental suite. I can’t wait for YoLink to unveil their security camera option!

We are farmers who raise our own meat. Because of that we have FULL freezers of meat at a time in our house. Like everyone, I had one quit on me, and we lost a bunch of meat before I realized it. We then bought these sensors a year ago and they are amazing! Easily connect to your phone, constantly have the temp handy to see, and set an alarm for when it warms up in the freezer. They've saved me twice already from a lid being left open, and a child unplugging the freezer. Our alarm is set to notify us when the temp warms up to -12, and then we have plenty of time to get to it before meat even starts to thaw. I've recommended these to many people we know. Great purchase!

Easy to setup and very accurate. Great Range! Many Smart Devices for your home or business!

I’ve had these devices for a couple years now, but have never written a review. After two years though, I still love them! I have two three-door commercial freezers in my retail store, one that has caused me grief through the years. These alarms have saved product on a few occasions; allowing me to call a service tech in time before any spoilage happened. The app shows you graphs so you can see when there’s a trend upward in temperature, if you have a slow leak for example. These are the best devices when you want to be sure your fridges/freezers are working properly.