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

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.

My freezer

Easier to set up than Samsung smartthings. Doesnt use wifi, instead LoRa which reduces load on router etc. Temp unit has been in our cryo freezer for months. Wanted to know how much i can reduce the fridge/freezer setting to stop paying for -15 freezer in a home kitchen. Signal can go through walls and the metal of a cooler or fridge.

YoLink Smart Wireless Temperature & Humidity Sensor is really easy to setup. All I have to do is to launch the up, press on set, and scan the QR code.

Had an issue with my outdoor fridge and wanted to monitor it. I can see the drastic swings in the freezer temp and humidity due to rising temps here in south Texas. Show just how hard your compressor is working in a hot garage. Also will save you a ton of money in ruined food.

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 like this little home automation device. I works stand alone (you can easily read it). It has a nice app with possible automations and it integrates easily with other systems

I already have a hub and 3 sensors. Adding 2 more was as easy as scanning the QR and pressing the button. I added one to my shop and the other to my greenhouse. Setting the temperature alarms was just as easy! I tried other temperature sensors and they just didnt have the transmission range. Battery life is fantastic! If you need to monitor temperatures, Yolink is the way to go!

Well worth the money I paid, the health inspector loves this system. I can monitor my temps, get alerts or turn them off, I can look at history and see the refrigeration cycles and consistency of the units. Ive caught problems before they destroyed product twice now by just paying attention to patterns.

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.