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

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 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????

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.

Bought this to monitor the because it had a better range than other options. I needed to monitor the temperature/humidity in a coldfrrame in my garden. It’s down the hill from my house so I wasn’t sure if it would have the range I needed. Just pugged it in and set it in the cold frame. It works great! I think I will buy another for my small greenhouse in the same location!

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.

I like the compact size of the device. Its on the back deck right now, where the temperature is a cool 7.7 F. (at 8:40) and the YoLink says it was 1.4 F at 7:55 and that time difference makes it hard to know if the YoLink is correct. But, early this morning I did see it 0.2 F displayed on my phone, and the local weather station (down the street) recorded a low this morning of 0.6 F. So, I think its working pretty well. Before I put this outside on the deck, I noticed that changing from C to F or F to C, would instantly display the current temperature (on the LCD and the app). So, it can be forced to sample, display and send data to the app. The only negative I can see right now, is the slow sample rate that Im seeing when the sensor is outdoors. I can ask Alexa what is the temperature in the Prius and she says The Prius Temperature is 5.7 Degrees. But, I dont yet know how to create an Alexa routine that can trigger an action when the temperature is <= 5.0 F.. So, this sensor isnt very useful yet. Maybe I should see what IFTTT can do for me. ~~3/26/2023 I ordered a Yolink SpeakerHub. I can trigger a Yolink Routine when the temperature hits an alarm limit! I set the limit for 90F and put in a south facing window. When the sun comes bright, it gets up to 90F and commands my Yolink speaker to say (custom) Hey Google, turn on the Inverter. My Google Hub, controls Meross Outlet 120Vac switches. The switch named Inverter turns on, drives a relay that activates my 3000W Sine Wave inverter. The Alert Interval is set for 60 mins. (if the sun is still warm, we get a new Alert every hour). My Merross switch is set to run max run time of 65 mins. If it gets a restart every 60 mins, it keeps the inverter running until the sun is about to go down. My inverter is driven by a 48vdc battery bank, but when its charged, I can use the 800w solar panels to run some the loads in the basement. Freezer, Fios system, inhouse ethernet gear and a PlaneFinder tracking system. The main loads are the sump pumps. When the basement floods! Like we just had when all the snow melted. Both Alexa and Google speakers can work to control the solar inverter, Im using a Google speaker hub, because it was already installed near the Yolink Speaker Hub.

I bought the temp/humidity sensor to replace an older iHome sensor that I didnt have faith in anymore. The Yolink sensor shows similar readings to the iHome sensor, so maybe I didnt need to buy something new, but I had a great experience using Yolinks motion sensor to turn lights on in a bathroom that doesnt have wall switches so I decided to give another one of their devices a shot. Adding the Yolink sensor to the Yolink app is a breeze - you just scan the QR code and youre on your way. It appears to report the temp and humidity every few minutes (I noticed some older reviews mentioning it only updates once per hour) so that is a pleasant surprise. However, I use Alexa for all of my smart home needs, and this sensor only shows temperature in the Alexa app, and half of the display in the app is cut off. Im disappointed that the sensor doesnt send humidity data to Alexa, which means I cant trigger automations inside Alexa for alerts or turning the basement humidifier on and off outside of a set humidity range. There are only 2 data points that the sensor needs to report, and the fact that it only reports one outside of the native app (and the one I didnt really care about) really bums me out. Ill most likely stick this in the deep freezer in my garage and look for another option from another company for automation of the humidifier. I suppose I could get one of Yolinks smart outlets to handle this automation inside Yolinks app, but not being able to have my Alexa speakers produce a notification and not being able to ask Alexa what the basement humidity is leaves me wanting/expecting more.

I ordered an additional temperature sensor as I have a few already and I am happy with them. I also have some water leak sensors. I was having a little trouble setting it up and contacted customer service and they walked me through it as they always do -I am very happy with the product and the service!

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!

I put one of these in each of my freezers. Even the one out in the garage gets a good signal! It is peace of mind to know I will be notified if there is an issue with the temperature before it is too late.