YoLink Smart Wireless Temperature & Humidity Sensor, Wide Temp Range (-22 to 158 Degree) for Freezer, Fridge, Green House, Pet Cage, Smartphone Alerts - Hub Required

I have several of these units monitoring high and low temperatures. They work well, even when cold; they alert me when the freezer gets too warm. Alexa integration is lacking, however; you can’t trigger events in Alexa when the limits are exceeded. The in-app alerts work, but aren’t as flexible.

Easy to set up with yo-link, works as expected. Good range and quality

Check your home temperature and humidity from your phone at any time. Works great in an apartment without a smart thermostat and I want to check the temperature when Im away. So simple to connect to the yolink hub.

I bought this to place in the storage compartment of my trailer which I live in during the freeze in Texas (Dec 2022) so I would know I needed to turn on the heater to prevent my pipes from freezing. Worked perfectly. I would recommend this to everyone who needs to monitor any temperature. Easy to set up and easy to use. Yo link has the sensors needed for various items as well all controlled in one app.

I had doubts when I ordered this, but it has absolutely been worth it! I bought an upright freezer a couple years ago after our chest freezer failed. The upright does not have any kind of spring or anything at all to help it close, and twice within a few months we lost a lot of food after not noticing that the door was slightly ajar after getting something out. Now the kids and I try to be religious about double checking the door is shut, but this sensor still has come to the rescue 2 or 3 times so far. Ive set it to trigger if the freezer temp gets warmer than 25 - the freezer is set to zero and getting something out bumps it up maybe 10 degrees. It has no issues connecting from inside our freezer in the basement to the hub upstairs and a couple rooms over. The battery life still shows full, and it keeps a log of temperature and humidity over time. Im absolutely thrilled with this product, especially at the price point, and given that the system has other sensors we can use with terrific range.

I use several YoLink sensors to monitor for leaks and these for monitoring our refrigerators while we are traveling. I can check the condition of things around the house from anywhere on my phone. Gives me piece of mind along with my security cameras.

I have two of these sensors, purchased mostly to monitor the fridge sensor. The first one had a faulty antenna, it fell out, so the range is quite poor. The other goes through batteries very quickly, its faulty in some way. Other than those two flaws they seem to work quite well.

First used to monitor our garage fridge, but stupidly didnt setup the alarm strategy. The fridge failed and we lost tons of food. After the repair, bought 2 more for the house fridge and set them up properly. The house fridge revealed a performance problem that Im working to fix. Its fancy digital settings & display mislead you to expect its controlling properly, but the Yolink temperature graph seems to show otherwise.

We own a small bakery/takeout restaurant and we purchased this to make sure our freezer stayed at the temperature. The product works really well. If the freezer door is open too long and the temperature goes up I receive an alert on my phone and an email. I called customer service to ask questions about setting up the alerts and they were very helpful. I was told that we can attach more sensors and we will be adding them for our other refrigerators/freezers. I think that cameras are in the works too and will be available soon.

I started out using YoLink water sensors September 2020 (4 sensors w/ hub). Installed them in my finished basement and laundry and didnt really give them much thought until I received my first notification/alert, I was doubtful but immediately went to check and low and behold, I had a slow leak in a slop sink. These sensors saved me from a HUGE headache. I went and bought another 4 pack and have these sensors EVERYWHERE. Now that I have the water issues under control, I have started to work on humidity & temperature in my home with their sensors. Temp & humidity sensors are just as easy and accurate! These are great products and I look forward to what new products will be released next.