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

Love having these in the freezer for piece of mind. We have had freezers go bad before and lose everything. Decided to purchase these before we bought half a side of beef. Easy to hook up and install to router. App works great, easy to set temperature ranges. I get notifications if it goes above or below set temperatures. So glad they make these now.

Easy to install. Alert works.

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.

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.

Moving into a new house and want it setup the way you want and with affordable and reliable products. This is the best way to go as far as I know. Many optional monitors and devices available and does not require allot of hubs. Very easy to add devices as you progress

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

We are currently using in a k-12 school system to monitor all our coolers and Freezers. Easy installment. App is easy to use. 24 hour monitoring with text, app alerts and email alerts. Economical! Highly recommend! Have not needed text support yet.

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 like how easy it is to add devices. Battery lasts over 1 yr in the hot sun and col weather at 9500 elevation. I can access from my phone and all yolink product is very easy to use and run on the app. Connection time is very fast. I have to say this to all my product.