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

I’ll start out with saying I’m totally blind. I got the hardware out of the boxes and felt them over good before I started trying to get everything connected and reading documentation. The first thing I had trouble with is trying to determine where the batteries went in the sensors. When you are totally blind! This wasn’t easy. Wants I got that determined! Then I started to mess with the App. The App can use improvements to label buttons, change screens so a person with a screen reader can update settings like Alerts for temperature and humidity. Using Android and Talkback, this isn’t doable. But anyway! I got the hub QR code scanned with no issues! Next I had to spend some time to determine how to bring the hub online using Wi-Fi. That wasn’t straight forward. I would have expected to be giving that option after I scanned in the QR code but that wasn’t the case! You have to go to another screen to do that. It should ask you how do you want to connect the hub after you bound it. Next I broght on the temperature Humidity sensors! Again it wasn’t given in the documentation online that I found that you need to remove the tape that is covering the QR code and also part of the battery cover. Wants I removed that tape, I was able to scan the QR code for the sensors. Maybe for a person who can see, this is clear! But not for a totally blind person doing it on there own. I put one sensor in the freezer after I replaced the batteries with LI batterys to ensure they’ll be able to take the cold temps. The sensor is working well. Just wish I could set the Alerts to what I want on my own. The second sensor is sitting beside my weather station and looks to be very close to it. I also wish I could set the update time to a lower number from 1 hour to maybe 5 minutes to catch miner temperature and Humidity changes. The second sensor will probably go in the Air Duct. That away I can get some idea of what the AC and or heat temps are coming out of the unit. I did find one sensor was in C and I had to determine how to change it to F for temperature. You just press the button on the back of the sensor to do that. Spent a good 15 minutes looking around the App and couldn’t find it. So figured what the hay lets see what happens when I press the button on the back of the sensor. The hub and sensors work well but the App needs improvements on Android to work with Talkback. A lot of unlabeled buttons and screens that a totally blind person can’t update things on. The low/high for temperature/humidity is only just one screen that needs to be improved. There are other screens as well. Like trying to setup automation task. Reading sensor values on the main screen. All of them say 0% before each sensor and even the hub. The battery status cannot be read for any of the sensors either. Like I said a lot of unlabeled buttons in the App that a totally blind person just has to try to see what they do and hope nothing bad happens. So for me, being the App. Is so bad! Is wy I’m giving this a low star rating being a totally blind person can’t do a lot with it at all. If the App get improved so a totally blind person can use everything or at least most things! Then I would have no issue with changing my star rating.

I got these for a deep freeze out in my detached garage. This setup quickly and without fuss. Its very accurate and has an impressive range. It was easy to setup custom parameters to alert me to extreme temperature changes sent directly to my phone.

We travel during the winter and want to insure our home is above freezing. So far the sensors and program are working well

These sensors work amazingly well even inside your freezer. The supplied hub plugs into your router and receives a solid signal from each of the included sensors. Our freezers are in the garage. I have them packed with wild game and other expensive meats. Loss would be catastrophic. These sensors send a solid signal and alert me on my phone when the temps enter dangerous ranges. So far they have worked flawlessly. Cheap insurance.

Using LoRa (long range wifi) this works very well. I have one sensor in my fridge and the signal easily gets through the fridge walls and to the hub 3 rooms away. The alerts are sent to email and/or phone by way of the hub. Set up was easy. The app assigns a widget to each sensor but oddly doesnt label each widget with the name that you assign to each sensor in the set up routine. But thats minor and you can see which sensor name is assigned by choosing a label in the app. Very cool. Now I can see when the fridge door is kept open too long by the wife, ha ha!

Good Quality, and accurate

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 6 weeks of use in our RV basement we are very pleased with the performance. We want to monitor the temp and humidity down there due to being in freezing temps. Love the phone app with the ability to set alarms.

Pretty much a a snap to set up (unusually so). Also connected to Alexia no problem. Only complaint... I really like freezing tha batteries & electronics... I do wish they would put a probe on these so we could leave the transmitter/eletronics out of the freezer.

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.