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

I bought this over 6 months ago and the batteries in the sensor are still near 100%. Setup was fairly easy. I use it in a deep freeze set at -10 degrees. Every once in a while I will check the app and see that the temp in the freezer is being maintained. Well it finally happened. Was away from the house and received a text and email notification that the temp in the freezer had risen above my preset +10 degrees. When i arrived back home I saw the freezer door was not completely shut. So the sensor and alerts worked perfectly and saved me hundreds of dollars of spoiled food. Highly recommend for the piece of mind it provides.

Got two temperature/humidity sensors for a second home to alert us if Temp gets too low. Easy to set up. Batteries last a very long time. Smart phone alert system notifies me if Temp is too low. Product support is great. Works over long distances. I use this system in two locations in two different states, both operating through the same app, no problem. A+ rating!

I bought this remote thermostat for my freezer. I didnt to loose a freezer full of meat. The thermostat is nice and small and just hangs from one of the shelves. Signal is great and with the app, I know the moment the temp drops below the alarm level that I choose. I also put one in the office where we keep guitars. This one has an alarm for humidity.

I have a RV that I keep at a storage facility. I turn on the refrigerator the day before a trip and needed a way to monitor the temperature of the refrigerator and freezer. Since my RV has WiFi I thought I would give the Yolink a try. It has worked perfectly. Setup was very simple even with the WiFi only setup. At home, or anywhere, I can see the temps and get a notification if the temps are outside the range I select. I added a 3rd sensor to monitor room temp for when we leave our dog in camper. I was so impressed, I purchased another hub and sensors to use at my house. I had an issue setting up the WiFi. I called Yolink tech support. The call was answered in 2 seconds. A very friendly young man told me what to do and it fixed the issue. Turns out if I had just read the manual I could have saved the phone call. I have been very happy with the Yolink and looking at their other products to add.

Following a service call from on my 9 month old LG refrigerator to correct a sensor problem causing the food in the freezer to thaw I decided I needed a WIFI sensor. I wanted a device that would monitor the temperature and notify me when the temperature rose above my setting in the freezer and refrigerator. After reading the reviews on the various products available on Amazon, I decided to give the YouLink Wireless Temperature / Humidity Sensor a try. After installing the YoLink Android APP and creating a YoLink account, I was able to add the HUB, and the two sensors by scanning the QR Code on the back of each device. I plugged in and connected the hub via the provided Ethernet cable (WIFI connectivity is also available). The hub status changed to online in the APP. I pressed the SET button on each sensor and its APP screen status changed to online. Each sensor immediately began displaying the temperature and humidity matching the information display on the sensors. I placed each sensor in the refrigerator and freezer sections verifying their accuracy with a separate temperature sensor. The Alert setting for high/low temperature and humidity were easy to setup with the APP. I find that the Alert notifications are almost immediate. The documentation provided with the hub and sensors is very basic, easy to following and gets the setup done quickly. I received links from YoLink on the additional more advanced setup options via email. I called the tech support number with some questions on Saturday and was able to speak to a knowledgeable tech support person. So far, I am impressed with the YoLink Wireless Temperature / Humidity Sensor and highly recommend it.

Using to monitor temperatures in Kitchen and Garage freezers. Also purchased YoLink Water Sensor 2 and that is working as expected. The hub and sensors have a nice look and feel. Tested high and low temperature alerts and can say they are working well so far. The YoLink app on the iPhone looks clean and works well for me. Dropped a star because setting up the hub to my WiFi network was a challenge. The hub only supports 2.4Ghz WiFi and apparently the iPhone must also be on 2.4GHz WiFi in order to set up the hub to work on a secure home WiFi network. The iPhone kept connecting to 5GHz by default and could not complete the hub setup step. Since 5GHz signals have a shorter range than 2.4GHz, I solved it by taking hub and phone to far end of house where I had a weak WiFi signal. Was then able to setup the hub to our WiFi.

humidity readings are off, i can put the same unit side by side and 1 is 83.5 humidity the other 79.3. always 3-4 degrees off each other, temp off but by 0-1.5 degrees... i think humidity reading are higher than normal, since my other units read humidity 5-8 degrees lower constantly BUT i dont know which is the accurate reading! I dont get the email alerts when reading are above threshold which is cool, but still returning,

I got these for a deep freeze out in my detached garage. This setup quickly and without fuss. Its very accurate and has an impressive range. It was easy to setup custom parameters to alert me to extreme temperature changes sent directly to my phone.

These sensors work amazingly well even inside your freezer. The supplied hub plugs into your router and receives a solid signal from each of the included sensors. Our freezers are in the garage. I have them packed with wild game and other expensive meats. Loss would be catastrophic. These sensors send a solid signal and alert me on my phone when the temps enter dangerous ranges. So far they have worked flawlessly. Cheap insurance.

I was hoping to use at our freezers in our buildings. Its less than a tenth of a mile away and it doesnt pick up.