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 2 sensors that track temperature and humidity. One is in our garage (tropical climate) and the other is in our refrigerator. I rely on the sensors when I am off premises. They are accurate and reliable. They have a strong connection to the WiFi despite one sensor being quite far from the hub (100+ feet). I have owned one over a year and the battery is holding up fine. Highly recommended product.

I have lots of yolink devices these are great but I have a cheap phone so had to copy and make code darker and bigger. Then scans fine. Work great with their hub. Fairly cheap. And the product support from the company is one of the best. Plus I like that they are local in Irvine CA.

My white house is smarty thanks to yolink from temperature of which I have an outdoor and an indoor

I confused two products that I bought. Check my Govee review for this YoLink item. I blame Amazon for not having the product brand name on the items to review page … and the icon photos are extremely small! Amazon gets a 2 star on that “service”

Wow that was Easy press that button on the back to turn on sensor and setup in app. Of course setup the Hub first. Create and account after connecting Hub.. I connected my hub directly with network cable. Hub does support wifi connection to your network. Once Hub is powered up in app just click the Add icon upper right, enable app to use camera and scan QR. Next click the Add icon again to add your sensor scan QR on sensor and well did I say it was easy. Next go to your Alexa app and go to Skills and add Yolink and Enable and link your account. No need to scan for new devices in Alexa. Just say Alexa what is the temperature on the Themperarure and Humidity sensor you can change the name of the device but ha that was so easy. Did I say it was easy...

Im usually skeptical with low cost devices, but I was in a situation to see if I needed to buy a new fridge, but wanted to know what was going on with it since it was starting to give me issues. So I purchased the temp/humidity sensor. Let me tell you, this system is awesome! The set-up was amazingly easy, and it was true to its word that it has a long distance connection. I have the fridge on opposite ends of my 2k sq ft home. It goes through walls and sends a signal to the (dedicated, sold separately wifi base) and provides me with notifications on my cell phone as I pre-set the qualifying conditions in which to notify me. Ive been talking to my friends about this unit. Highly recommend it.

You can look up the current reading from the always-on LCD panel on the 2.5”x2.25” sensor as well as from the phone app with up to one-hour delay. The phone reading is updated only once an hour. There is no refresh button for force reading the current temp/humidity. If the recent phone display says “Recently update:” 08:00 AM, then that is all you can see on the phone until 08:59 AM. At 09:00 AM, the phone reading is updated to the 09:00 AM reading. The graph reading lags even more. The app graph gets updated with a one-hour lag. E.g. at 8 AM, you see the 7 AM reading on the graph. But, at 8:59 AM, you still see the 7 AM reading. At 9 AM, the graph gets updated with the 8 AM reading. Why one-hour lag? I don’t see the data “refresh” button in the app. There is a “refresh” button on the “Rooms” screen, but that seems only usable for refreshing the list of devices connected to the hub. The graph data logging is only once an hour on the hour and you cannot change it. The app display choices are hourly or daily, and temp or humidity. You would expect to be able to change the range of display time. But no, pinching the screen does not change the magnification. You can only scroll endlessly left or right in fixed scale day or hour mode to see the time span of interest. I am not sure what the app designer was thinking. Like other YoLink devices, the batteries are pre-installed and shipped turned ON! Depending on how long the device sat in the inventory, you can be receiving already or mostly spent batteries only good for immediate recycling. The temp sensor firmware is 0309.

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.

These are a little complicated (for a simple mind like mine) to set up and get connected but overall, I like them and have ordered a couple more sensors since.

Great trends in the app.