Smart Wireless Temperature / Humidity Sensor Wide Range (-22 to 158 degrees) for Freezer Fridge Monitoring Pet Cage/Tank Monitoring Smartphone Alerts, Works with Alexa IFTTT, 2 Pack - Hub Included

Got two temperature/humidity sensors for a second home to alert us if Temp gets too low. Easy to set up. Batteries last a very long time. Smart phone alert system notifies me if Temp is too low. Product support is great. Works over long distances. I use this system in two locations in two different states, both operating through the same app, no problem. A+ rating!

I must be honest and say I was a bit skeptical about this product at first (placing a wifi device inside a sealed metal box), but let me tell you, it really works! Once you get the thresholds set it will send you a notification directly to your phone (via email) when the temperature or humidity has exceeded your setting. Be mindful of your defrost cycle. It will send false readings if you have your threshold set to low. Once I got that figured out, it has worked flawlessly. You can monitor it in real-time via a graph in the app. Super impressed with this little device. It definitely gives peace of mind that my freezer packed with venison will be safe and sound on my next hunting trip.

I use one sensor in our fridge and the other in our beer fridge. They work beautifully and accurately. I simply check the app when I want to know how cold they are. I also set up alerts if they get above a certain temperature guaranteeing no spoiled food or warm beer. Its extremely easy to set up ythe app is user friendly. I highly recommend this product.

Took me less than 5 minutes to install three sensors and a hub - start to finish. I have two leak sensor and a temp-humidity sensor. Next, I am going to get the garage door sensors and controllers for my three car garage. Absolutely impressed by having zero software or hardware glitches compared to hours of headaches with prior home automation devices. Should cost a lot more for this quality of product!

I bought this over 6 months ago and the batteries in the sensor are still near 100%. Setup was fairly easy. I use it in a deep freeze set at -10 degrees. Every once in a while I will check the app and see that the temp in the freezer is being maintained. Well it finally happened. Was away from the house and received a text and email notification that the temp in the freezer had risen above my preset +10 degrees. When i arrived back home I saw the freezer door was not completely shut. So the sensor and alerts worked perfectly and saved me hundreds of dollars of spoiled food. Highly recommend for the piece of mind it provides.

If this is the kind of device you are looking for to be able to remotely view temps and humidity this is the best one I have used so far. Even better than so called name brands. I dont get all kinds of false alarms. The interface is easy to use but not stripped down to bare minimums. Most importantly, it just works, worked easily practically out of the box. No drama, no fees. Its great.

The YoLink app is simple, easy to use, and very straight forward. Pairing new devices is easy, and the information is easy to read. The hub was also easy to connect with my Google Assistant. In general I would recommend the YoLink system to anyone setting up a smart home. HOWEVER... My primary focus when buying this base set which included the YoLink Hub, and 2 Temperature / Humidity Sensors was to have my Google Assistant (and IFTTT) read information from these sensors and preform automated actions. Much to my disappointment, these sensors are among the few YoLink devices that are NOT directly compatible with Google Assistant and Amazon Alexa. There is an alarm feature that CAN be linked with IFTTT, but it is extremely limited. Once again, The YoLink system itself is genuinely nice and easy to use / connect with other services. My only complaint is that SOME devices are not compatible with all features. While the sensors I have don’t do exactly what I needed, I am keeping them and the YoLink hub as I will use it for other sensors I plan to purchase in the future.

Be aware of what you buy. An other brand I bought only works on Bluetooth so you only have phone/app readings when you are near them. But this product works on wifi, so you can access them anywhere thru an app on your phone AND get phone alerts for temperature or humidity. The charting/history granularity is one hour minimum however alerts can be set for a minimum of 10 minutes. That all said if you wants alerts because of a power outage, then your wifi may be out also so you would not get alerts or readings without some backup power source. The units are battery powered and with a battery status icon on the app. The hub unit plugs into ac power. It can be set up via cable to a router or via your wifi network.

After losing an entire freezer of meat, I wish I bought it before. I can see Temps any time and get an alert if it gets warm.

We have a refrigerator out in our uninsulated garage. I wanted to monitor the temperature for 2 reasons. ONE, during the winter I want to ensure temperatures are maintained. TWO, this is an old fridge, so I want to be alerted if it stops working altogether. I love that these monitors collect a history so that I can easily keep an eye on things. I found the setup to be very easy and quick. I connected directly to wifi using my Eero system. I love that there will be alerts sent directly to my phone so that I can take action ASAP. I just installed this today and I will absolutely update my review if anything changes.