YoLink 3 Pack Smart Water Leak Sensor, 1/4 Mile Range, Alexa & IFTTT Compatible, App Notifications - Hub Required (YS7903-UCx3)

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.

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!

If you are running the YoLink system, buying more sensors is not a maybe it is a must. I picked up this 3 pack to cover the rest of the house and it was a no brainer. Setup took minutes, they synced right up, and now every risk area is covered. Under sinks, water heater, laundry, you name it. These things catch leaks fast and alert you within seconds through the app. Pair that with the automatic shut off and you are basically shutting down problems before they turn into expensive lessons. The range is legit too. No signal issues, no drop offs, just solid performance. At this point, if water gets loose in my house, it is going to have a bad day not me. Bottom line, if you already have the system, do not cut corners. Get the sensors and cover everything.

These little things are one of the best investments I've made in many years. So easy to use and setup, and at a very reasonable price for what they've already saved me. I've had them maybe a month and they've already saved my butt at least twice. I installed a 4-gal booster water heater in the kitchen cabinet near my sink (not directly under the sink; you know that completely useless space in the corner of your lower kitchen cabinets? Yeah, not so useless anymore!). Not someplace one would check regular for leaks. Dummy me didn't properly tighten the pressure release attachment on top of the water heater. Well, this little guy alerted me before it became a major repair job. Thanks YoLink! BTW, I also have the temp/humidity probes in my garage fridge/freezer to alert me if one of the kids leave the door open again ;). Great products and great app.

I recently needed assistance with my YoLink system and was connected with Phoebe ] in customer service. They were absolutely fantastic. She was incredibly patient, knowledgeable, and stayed on the line with me until my [mention your issue, e.g., water leak sensor / hub setup] was completely resolved. It is rare to find customer support that is this responsive and genuinely helpful. YoLink makes great hardware, but their stellar customer service makes them even better. Highly recommend!

it’s very easy to set up and it’s very helpful

These leak sensors are small and easily placed where you want to monitor for water leaks, such as under a sink, behind a toilet (see photo), next to a water heater or clothes washer. With a hub to connect them to the internet, they can send notifications when a leak is detected, which is useful all by itself, but the best part is that they can also communicate with other YoLink components to automatically close the main water valve, greatly reducing the risk of damage. I started with a kit that included a valve operator and controller, a hub, and three leak sensors, but I wanted more leak sensors, and this multi-pack was the most economical way to buy them.