Water Leak Sensor 4 with 105dB Audio Alarm 3-Pack, SMS/Text, Email & Push Notifications, Freeze Warning, LoRa Up to 1/4 Mile Open-Air Range, w/Alexa, IFTTT, Hub Required!

TLDR: These are *AWESOME*!!!!!!!! I have to admit, I was *really* skeptical of the "YoLink" family of products when I bought them. It sounds kind of hoaky and well, I didn't think it would work all that well. BOY, I WAS WRONG! I bought a YoLink Hub with leak sensors and bought this 3-pack to protect extra areas of my home. About a week after installation, they went off when my water heater relief valve let go and the water got shut off immediately so that the flood was very limited in scope. These devices are awesome so far, and I am so glad I have bought them. I also bought sensors for my refrigerators and a water shutoff valve motor that automatically shuts the water off to my house if a leak is detected. I can see the status of my home from anywhere that I have cell signal! Installation: Couldn't be easier. Get the app from the app store, click on the "scan" button and scan a QR code on the back of the device. It gets added to your YoLink Home, and after you power it on, you get instant feedback as to the health of the device, the health of the connection, and the status (alarmed or normal). 10 seconds per device to install. You can name each one, organize them into rooms, and many other options. Function: I tested the leak sensors by licking my fingers and bridging the contacts with my wet finger. Each one I have bought has alarmed on all of the sensors on the device. There are two sensors on the bottom and one on the top (cleverly in a little "cup") that would hold water if it were spraying everywhere. App: The app is pretty decent. I get a dashboard that lets me see my whole home at a glance. There are a few confusing parts, like Scenes, and "Automation" which are not immediately obvious. But they have a few videos that help and their customer service was pretty responsive. Range: I have a sensor in the basement freezer and one in my kitchen refrigerator. While they aren't horribly far from the hub, they have full strength signals despite being in cold temperatures and inside the refrigerator boxes. Battery Life: I cannot comment yet, but they are not replaceable and are supposed to last 5 years. I hope that's true. But even if they last a couple years, the disaster they save you might be worth it. Installed locations: Under each bathroom sink, Under kitchen sink, Under each toilet tank, near my washer and dryer, behind my refrigerator (icemaker has leaked before), Near my boiler, near my water heater, near the A/C condensate pump. Overall, I couldn't be happier with my YoLink system. This was well worth the money, especially since it already saved me from one bad flood.

Love these, altogether I think I’ve purchase about 14 of the pucks and 2 hubs (one as a backup since the combo price was as cheap as buying without another hub).

These are great! I've been using them for years now. I added a hub and sensors to my elderly parents home as well. They think I go over the top with tech but just a few weeks ago I got a phone call from them. While they were at my dads cancer treatment center, they were getting an alert from one of their leak sensors in their garage. I drove over to check for them and sure enough, the water heater had just barely begun to leak! The leak was so small in fact, I had to pick up the sensor to see the tiny bit of water. I had the sensor sitting in the pan they typically put the water heater in. They were pretty happy I had installed the sensors and now really see how items like this can save you from a flood or worse. And when the new water heater was installed, the sensor wouldn't fit in the new/smaller pan they used. YoLink also has a rope water sensor which is PERFECT for this. I ordered two. They have a length of rope-like wire you can drape around things. You can even add extra lengths of the wire to extend it if needed. I'll also say that over the years YoLink support has been awesome and it looks like the company just keeps growing, releasing better and better products as they listen to their customers to keep producing useful items. I also have the water shutoff valve which I haven't installed yet but will be, along with some temperature sensors (great for hurricane areas/power outages when you don't know how long the refrigerator may have been turned off for, to know if your food has spoiled), the siren, speakerhub, garage door sensor, magnet door/window sensors.. I have the floating water temp sensor in their in-ground pool so they dont have to bend all the way down to pull up an old school thermometer (hard to read) from a string. With the YoLink temp sensor, they just look at their phone and can get alerts for low/high temps so they can turn their solar heat on or off. I really can't say enough good things about their products. Great job YoLink!

Works well once reset to Europe wifi but it would not connect with their European/UK hub without a fair amount of resetting and liaison with tech support. I was expecting this so was not a problem for me.

Excellent range, excellent battery life, and the on-device siren is a great addition. I don't think anything beats the Yolink ecosystem for ease of use, app user friendliness, battery life, and range.

The hub and temperature sensors work well and are connected immediately. I purchased the 3-pack water leak sensors but did not realise the difference between UC and EC on the labels. UC does not work in the UK; you need to buy EC. I contacted tech support, but after an initial hello, I have been ghosted!

I installed these water leak sensors in key spots: under the dishwasher, laundry washer, and next to the water tank, to catch leaks before they become problems. Setup with the hub was smooth. A smart layer of protection for any home.

This system works great.