WiFi Freezer Thermometer Alarm with Digital Monitor Hub, App and Email Alerts, 2-Year Data Export, 2 Remote Temperature Sensors for Refrigerator, Fridge, Freezer

This has worked well for us in freezers sending a notification to my phone and an audible alarm if the door is left open or power goes out. Last week we were not home and the app notified me the monitor was off line. We could have lost 2 freezers full of beef. We also used to monitor the temperature of a chicken Brooder. Easy set up. Works with wifi and an app on my phone. App is easy to change desired temperature.

Very happy with this purchase. With the optional wired probe to display, you can monitor 3 units. Do not tape to wall of your deep freezer or refrigerator-freezer, as probe will pick up defrost cycles, giving false alarms. Best method is to place probe in a small bottle with some glass beads, or even some dried beans will work, so probe does not react too fast. You can also use the software to extend the delay before alarm, which will be different for every unit. Graphing on App is very helpful to see how often defrosting cycles are. Setting up the software was very easy, following the provided instructions. As will all wireless devices, if the wireless units are too far away with multiple walls or floors blocking signals, reception can be affected. Be sure to place the sending unit outside the Frig/Freezer and on the side or top closest toward your display unit, for best reception.

I bought the ST5 and the Hub. I did have a sensor fail at about 10 months (the other is still working without issue). I contacted support and had it replaced easily under warranty. The replacement was VERY fast. I've been very happy with these. The app lets you set ranges of temps for notfications, delays (as most units have a high/low cycle for temperature that is normal operation). These have been fantastic to monitor my additional freezer/fridge units, and their customer support is excellent.

Bought this temperature monitoring system for the freezer in the garage, what I love about it the easy install and syncing up the probes and hub. the concept and having the mindset that I'll be alerted on the temperature of the freezer is on point. The issue I'm having is it will be reading -11* F on the app and hub but all of sudden the temp will read up to like 25* and the system alarm will go off. Checking on the freezer the door display says temp is -10* so whats going on? then I'll wait and about 30 to 45 min later the hub and app will read a temp back in the negatives. I'm still tinkering with it maybe it's something on my end.

We bought a cheaper set and discovered you couldn’t hear it 10 ft away. This one is good and loud and because it’s app connected if we accidentally left the freezer ajar and left home, we would get an alert on our cellphone. Or if we weren’t home and the freezer failed, we would know it. I highly recommend this device!

I am impressed with the quality of this device. It seems really well built. Their website appears quite professional as well. The sensors and hub hooked right up. However, at times I felt that the setup process could have been a bit clearer. Their first line of customer support was not that good. For instance, I could not find a .pdf version of the user manual on their website. I was working by email on a separate issue. And I asked in two of those emails to please send me a .pdf version of the user manual. Neither time did they even so much as respond. But they followed up with someone else contacting me, asking if all my issues had been resolved. I explained about the .pdf and this person sent one to me right away.

I admit I needed the help of my handyman to figure out the instructions. But the thermostat was easily installed and connected via bluetooth. The thermostat has worked very reliably and provides a push notice if the temperature ever gets too high. This gives me a lot of peace of mind.

I have several freezers that contain the wild game meat that I harvest each year and I wanted to be able to monitor their operation in real time so I purchased this system to try. Extremely happy with my purchase. Very easy to install and works amazingly well. The APP that you download onto your phone provides a seamless, instantaneous link with the individual sensors and it provides you with all the information you need at the touch of a screen. The sensors continuously monitor the internal temp of the freezer and instantly detect any variance in the temps and immediately report to you via email and text message that the temperature has changed. You set the upper and lower limit for temperature based on your needs so you can custom tune the system to meet your needs. You can add more sensors if you wish, which I did, and doing this was very easy. This system even lets you add water sensors which I did in several locations in my basement (near water heater, oil burner, laundry room) and just like the temperature sensors the water sensors were very easy to add to the system and they work great. This system gives me great "peace of mind" when it comes to my freezers and the safety of my wild game meat as well as being able to constantly monitor any water leaks that might arise in my basement. This is really a great system. Get one, you won't be sorry.