Review on Wasserstein WiFi Water Leak Sensor: Smart Home Protection Against Water Damages - 2-Pack, White by Lamar Hopkins

I don't like that the app fails the network test 100% and when using my WiFi hotspots, devices only appear online when there is an active alarm. There's no way to know if they work without testing them. Another complaint I have about these sensors is that they use a very expensive battery. It would be easy and expensive to add an external power supply. I'll keep them for now and maybe hook up a power source to them at some point in the future. So I kept them. What mistake. Ordered on 11/06/2018. Installed a washing machine. The washing machine overflowed and this unit did nothing and the sensor was definitely wet. The battery seems to be fine - in the application it shows about 75%. When I check the network it says there is no network connection. I just dunked it in a cup of water and I got an alert on my phone, but it definitely didn't detect water in the laundry room (no audio alert from device or alert on my phone). So since it passed the cup test and sent me a notification again, I'm not 0% sure this device will work. Oh, and I almost forgot. You cannot customize the alarm that plays on your phone. So I'm not sure what the phone notification sounds like, but I've never heard it - maybe it's using my text notification? In any case, this is such a subtle warning that it's EASY to miss. (when I say I've never heard of it, I really mean I've never heard of it, even when I did the cup test)…. Although the notification was in my notifications on the phone. Do yourself a favor and buy a device from a more reputable company. I have almost new hardwood floors simmering around the washing machine now as that thing didn't work. ----- To make matters worse, I bought these in November and now I can't return them AND the support box. closed.