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

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$24.99

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(10000 available )

Total Price
$39.47
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  • Devin

    > 3 day

    It seems like some of the complaints on these is that theyre not accurate so just to make sure I purchased several analog and digital temperature sensors to check them against their readings. I must say the temperature readings are spot on or at least within 1 degree of spot on which is pretty friggen accurate for such a small sensor. Overall these were probably the easiest things Ive setup in years and literally just scanned QR codes to get it to work; not a single problem the entire way! For something this affordable, adjustable, reliable, and accurate its one of the best investments Ive made in a long time! Hopefully this company does well because I cant wait to see what other sensors they can add to make my life easier! Ultimately you cant go wrong with these, there literally was zero downsides and I cant say enough good things about them!

  • RC

    > 3 day

    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.

  • Don Cajone

    > 3 day

    I have several of these for cigar humidor. I have calibrated time and again. Every time I get two to match temp and humidity I then put both in humidor and they are then way off from each others by several points. Huge fluctuations and dies not stay calibrated stable-wise. What is the +- accuracy??? Is it low like +- 4% or????

  • kenny

    > 3 day

    I bought a temperature sensor/alarm just to see if this thing works. Now I have about a dozen devices and they are so easy to install and configure. Ive called support a few times and the support was quick to respond. I have a temperature sensor in a metal building 400 away and it works perfectly. Easy to recommend this product.

  • Tal

    > 3 day

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

  • john mikes

    > 3 day

    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.

  • Dr. Grace Kessler

    > 3 day

    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.

  • John Reed

    30-03-2025

    When used with YoLink smart hub this temperature and humidity sensor sends you alerts when your set limits are exceeded. Very easy to set up with YoLink ap and shows all device data on the ap. I place one sensor in my freezer and one in the house to monitor temperature at a glance from anywhere. Excellent system for peace of mind!

  • Burt Anderson

    > 3 day

    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.

  • Nunya Bidness

    > 3 day

    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.

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