YoLink Smart Power Fail Alarm & Hub Kit, Smart Home Starter Kit with AC Power Outage Alert, LoRa Long-Range, Remote Monitoring, App Alerts, Text/SMS, Email Alerts, IFTTT

We now have several Yolink devices. This power failure alarm/alert and several water leak detection devices. We use 2 hubs in two different buildings. I installed the power failure alarm as we have, in the past, had power failures during the late night and have slept several hours while everything was shut down. I don't like this. If the power goes off I want to know that some of our systems (internet, lights, freezers, refrigerator, AC/Heat) are down and also take some precaution for electrical surges when the power comes back up. We have had this device for a few months and during that time lost power and had the loud audible alarm wake us up and send us messages regarding the outage. (without power we get "offline" indications) Provides peace of mind. I like the devices we have used so far from Yolink. They seem to have good quality and function just as they are advertised.

This item is great!!!Super fast notifications.

Easy to install and functions as designed. Could be a bit louder for my hearing, however my wife can easily hear it and says its annoying to her. Mission accomplished, she quickly alerts me so I can start backup generator!

In case anyone wants to silence the siren on this like I did, peel off the 4 little rubber feet, unscrew the 4 hidden screws, pull the top and bottom apart, and then just snip the red and black wires going to the siren. Put it all back together and voila, you have a silent power outage detector. If you ever want to un-silence the siren, you can solder the wires back onto the board.While this workaround is quite simple, I don't understand why YoLink, as well as most of the other brands I've researched, don't include an easy option to silence the siren on these power outage detectors. I don't want to bother my neighbors with a loud siren. I just want to receive alerts if the power goes out.The best you can do without taking the thing apart is to set the siren to the shortest time possible: 10 seconds. Bafflingly, the app does have an option labeled "mute," but I have no idea what the mute option does--it certainly does not mute the siren.Aside from this, the detector work as described. Hopefully it will hold up better than my old one (MySpool, which did have a silent siren option but also began sending me multiple false alarms on a daily basis after a few months).

Added this to ensure that the outlet that supplies power to our freezer is operating. 15 free Text alerts and emails are a great feature.

Good product. Gives peace of mind for freezer. Will expand with other devices soon.

Had to replace everything in my freezer once I bought this power failure device and I get immediate notifications on my phone and also audible alarm if anything goes wrong

I use these to notify me if the GFCI gets tripped on the circuit where I’ve installed our garage fridge and freezer. Works great. Peace of mind that your food isn’t defrosting without your knowledge. Love the app. I have several of their different types of sensors and they all work well and are thoughtfully designed.