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

If you wanted something to wake you up when the power goes out, this will likely do the job if you're in the same room, and maybe even if you're not. Have tested it quite a few times and a few of those were unintended. Notifications seem reliable. As for the hub you'll need one to use the YoLink ecosystem. That seems to work reliably as well but I haven't put it through its paces a lot just yet. No worries so far.

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

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.

I have an outside sump pump that I have had power issues with in the past. It goes out without my knowledge and we would have water issues. The YoLink Smart Power Fail Alarm & Hub Kit, Smart Home Starter Kit with AC Power Outage Alert - was the perfect solution. Download the app on your phone and follow the process - super easy. If you have Ring products - similar process, but easier. I strongly recommend the product.

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.

I have pets in a different area that i needed to know if the power or more specifically the heat went off. This machine did not alert me any of the times the power went out.