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

Easily monitor temperature when not home, alert if it exceeds limits. Very easy to set up with the app.

Used for bearded dragon tank

Easy wifi setup with hub. Add more in seconds. Very durable and accurate. I use these to monitor my freezers, fridge, and basement humidity. Will buy more as needed.

My kids keep leaving the fridge open. Not everyday, but every few months. I am very happy with YoLink’s flood/water and temperature sensors, which have been super reliable and also trigger Alexa routines I can set up. I ordered these last morning. They arrived in the evening. I literally had to open the box and scan the barcode at the back with the YoLink app and I was all set. I stuck one in my basement freezer and one in the basement fridge. It took several hours for the temperature reading to equalize to the actual temperature - there’s a bit of inertia to the temperature detection. Once it stabilized, it matched the reading on my infrared thermometer and my digital probe that I use for grilling. Likes: Easy to set up, very good range. Stores historical readings in the device which are viewable on the app. Useful to see the peaks and dips in fridge temps or house temps. The YoLInk app lets you trigger alerts (from the app) when the temperature deviates from a specified range. It also sends you emails (lets say you are traveling - you could have a friend or neighbor get an email!) Dislikes: Alexa will not let you trigger a routine based on temperature alone. I had my flood sensors set up to announce to my Echos that I had a flood in a specific area of the house.

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

This device saved me a lot of grief. I put it in the refrigerator and discovered the temperature was going up into the 40’s overnight. The digital fridge temp always said it was 37, so I wouldn’t have know there was an issue until the fridge conked out. I got the fridge fixed before it was a huge hassle. This device is worth every penny!

Love having an App on my phone to check my stand up freezer temperature wherever I am at. Took a bit over 10 minutes to set up. Well worth the sense of security knowing that my food is safe

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.

Pros: Easy to install, communicates with rest of Yolink integrated system, can provide voice warnings when used with a speaker hub. I purchased two thermometers that I wanted to integrate with the rest of my Yolink water leak detection and shutoff system along with my speaker hub. Installation was a breeze, scan the qr code, push the set button, and you are in. Because I have a Yolink speaker hub I was able to program the thermometers to issue a voice warning when the refrigerator temperature went above 42 deg. F (the high and low temperature limits are programmable). Programming is very easy and intuitive. Without a speaker hub, users will receive an email and notification and, optionally, a text message. Customer service is excellent. Batteries are supposed to last two years or more and the Yolink app shows the battery status of all components. When compared to a calibrated digital thermometer, the Yolink thermometers were well within one degree of accuracy. As a bonus, the thermometer keep a history of temperature and humidity. These thermometers are designed for indoor use. Very pleased with this product.

I had a plug in a remote corner of my home that had a competators WiFi controlled plug. I would lose connectivity. I cant blame the wifi plug, but had very little options to improve the sub-prime location of my wireless router other than costly investment in MESH or other solutions. So, I repurposed that plug to another location and used this product from YoLink. Once I set up the LoRa hub (REQUIRED!) and the plug, it works wonderfully. It was easy and quick to set up and when I went to Alexa I was smiling what I found that the YoLink SKILL actually had a positive rating unlike many others. After this great experience, Ive added 4 of their water sensors, an indoor and outdoor thermometer, and got 2 of the FlexFobs. All accessories were similarly easy to set up to connect to the same HUB and very quick to set up and get into my Alexa routines. Literally 20 seconds to set up using the scan QR code in the App. It took longer to open the boxes! What I have set up (so far) • YoLink Hub • 4x Water Leak Detector • 2x Flex Fob (one wall mounted, one to carry) • Indoor Thermometer/Humidity • Outdoor Thermometer/Humidity Pros: • Easy to set up • Good range (at least better than WiFi) • Integration with Alexa • Extra credit for making use of minimal packaging. • The FlexFob can be used in any Alexa routine not just other YoLink devices (under Smart Home each of the 4 buttons is treated like a motion detector) • The FlexFob even included a wall mounting bracket, which was a pleasant surprise for me! Cons: • Basically none. • If I had to complain about something, I guess the mobile app could use some refinement (You need a few clicks to go into settings to change something as a favorite, etc. which maybe could have alternate way, such as a click and hold)