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๐ง Stay dry, stay connected โ leak alerts that never sleep!
The YoLink Water Leak Starter Kit combines a powerful LoRa hub with four silent leak sensors to deliver whole-home water leak detection with up to 1/4 mile range. It offers instant app, SMS, and email alerts, plus offline device-to-device triggers that activate sirens or shutoff valves even during internet or power outages. Compatible with Alexa, IFTTT, and Home Assistant, this scalable system runs on long-lasting AAA batteries (up to 5 years) and provides professional-grade protection for hard-to-monitor areas like basements, attics, and utility rooms.







| ASIN | B084WYB8PM |
| Battery Cell Type | Alkaline |
| Best Sellers Rank | #2,907 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2 in Water Detectors & Alarms |
| Brand | YoLink |
| Built-In Media | Batteries |
| Color | White |
| Compatible Devices | Smartphone |
| Control Method | App |
| Customer Reviews | 4.6 out of 5 stars 6,694 Reviews |
| Item Dimensions | 8 x 2 x 4 inches |
| Item dimensions L x W x H | 8 x 2 x 4 inches |
| Manufacturer | YoSmart |
| Maximum Range | 1320 Feet |
| Mfr Part Number | YS1603+4YS7903 |
| Model Number | YS1603+4YS7903 |
| Power Source | Battery Powered |
| Sensor Technology | Contact Sensor |
| Smart Home Compatibility | Smart Home Compatible |
| UPC | 850024791565 |
| Unit Count | 1 Count |
| Voltage | 3 Volts |
W**Y
Peace of mind, delivered โ from anywhere in the world
Water damage is one of those home disasters you don't think about until it's too late. The YoLink Water Leak Starter Kit changed that calculus for me completely โ and the relief it provides is hard to overstate. Setup was remarkably straightforward. Getting the hub and four sensors up and running required minimal effort, which matters when you're dealing with hardware that's going behind appliances and under sinks. No wrestling with complicated configurations or cryptic instructions. The real magic is what happens once it's all running. If a sensor detects a leak, it automatically triggers the main water shutoff โ no intervention needed, no frantic rush home, no crossed fingers. That automatic response alone is worth the price of admission. But on top of that, I can shut off my main water supply manually from anywhere, whether I'm at the office, on vacation, or just away for the weekend. That kind of remote control over something as critical as your water supply is genuinely reassuring. The LoRa long-range connectivity means the sensors stay reliably connected even in spots where other wireless devices might struggle โ basements, utility rooms, far corners of the house. And the Alexa integration works seamlessly, adding another convenient way to interact with the system without reaching for your phone. If you're a homeowner who wants to stop worrying about what might be happening to your house while you're away, this kit is a no-brainer. It's practical, it's reliable, and it delivers exactly what it promises. Absolutely worth every penny.
A**Y
works great
Iโve been very impressed with this Wi-Fi water valve system. It connects seamlessly to my phone and allows me to remotely open or close the main water supply to my house, which adds a great level of convenience and control. I paired it with a compatible water leak sensor to create a smart leak detection system. I also integrated everything with Alexa, so if a leak is detected, Alexa immediately announces an alarm both in my home and on my phone. At the same time, the system is set up so the valve automatically shuts off the water supplyโeven if Wi-Fi or power is downโwhich gives me extra peace of mind. Iโve only been using it for a few months, so I canโt yet speak to the long-term battery life of the sensors. The valve itself is connected to a 110V power source but includes a backup battery to operate during power outages, which is a great feature. Overall, I feel much more comfortable knowing my home is protected against potential water leaks. Itโs a smart investment for anyone looking to prevent costly water damage
C**Z
Great for monitoring hard-to-reach areas
We bought the YoLink Hub + Sensor kit to monitor our attic water heater setup, including the T&P valve, cold water pipe, hot water pipe, and drain pan, as well as the water level in our basement sump area. So far it has worked very well. The biggest benefit is peace of mind. These are areas we do not check every day, so having reliable alerts makes a big difference. Setup was straightforward, the sensors connected without much trouble, and the system has been stable. Notifications have been timely, which is exactly what we wanted. If you need monitoring for places like an attic, utility area, or basement where early warning matters, this system is a great choice.
D**.
Must-have protection: Caught a leak in the first week!
Iโve had a great experience with the YoLink Water Leak Starter Kit so far. It provides a level of peace of mind that is well worth the investment. I have sensors placed in several high-risk areas, including near my water heater. While that hasn't leaked yet (thankfully!), I also have a sensor tucked under my refrigerator. My fridge occasionally leaks water, and this system catches it and alerts me right away. The instant notifications are fantastic because they allow me to address the issue immediately. It has already helped me prevent larger cleanups and, more importantly, potentially serious water damage. Pros: Instant Alerts: The speed of the notifications is impressive. Easy Setup: The hub and sensors were straightforward to get up and running. Preventative: Truly helps stop a small drip from becoming a major headache. If you're looking for a reliable and responsive leak detection system, I highly recommend this starter kit!
F**N
Accurate and reliable
These leak sensors work well. The setup with Home Assistant was quick and smooth. I've got them monitoring my hot water heaters and two sinks. I tested them by dripping some water nearby, and they reported these "leaks" very quickly. This gives me high confidence in the sensors' ability to detect accurately. The only thing I've noticed is that they give false reports every now and then, indicating that a leak has occurred when it has not. This happens perhaps once every couple of month; that's the only reason for 4 stars as opposed to 5 stars..
J**O
Nice Product
I bought this 3-pack to place under my kitchen sink, refrigerator, and water heater. Setup was incredibly easyโthe hub (sold separately/included) connected quickly, and the sensors paired in seconds. I tested one with a damp paper towel, and the notification on my phone was almost instant. The LoRa technology really does seem to have a much better range than my old Wi-Fi sensors; I have one in the far corner of the garage and it never loses connection. Highly recommend for anyone looking to prevent expensive water damage.
V**C
Good product
I cannot recommend the YoLink Water Leak Starter Kit enough. After dealing with a minor basement leak last year that went unnoticed for two days, I knew I needed a reliable detection system. I did a lot of research before settling on YoLink, and honestly, this system blows the standard Wi-Fi sensors out of the water. Here is why this kit deserves a full 5 stars: LoRa Long-Range Technology is a Game Changer: This is the main selling point. Unlike standard smart home devices that struggle to stay connected in my basement or utility closet, the LoRa (Long Range) tech punches through walls and concrete with zero issues. I have one sensor in a detached garage about 100 feet from the house, and it has full signal strength. Ridiculously Easy Setup: I am not a super technical person, but I had the Hub and all 4 sensors up and running in under 15 minutes. You just scan the QR code in the app, and it connects instantly. No fiddling with complicated Wi-Fi passwords for each individual sensor. Silent but Deadly Accurate: Note that these are the "Silent" version of Sensor 1. They don't scream at you with an onboard siren, which I actually prefer because I have pets that would be terrified by a loud alarm. Instead, the Hub handles the audio (if you want it to), and the phone notifications are instantaneous. I tested one with a wet paper towel, and my phone buzzed within 2 seconds. The App is Fantastic: The YoLink app is clean, intuitive, and lets you set up all sorts of automation. You can even configure it to send emails or texts to family members if a leak is detected while you are on vacation. The Bottom Line: For the price of a single plumbing visit, you get a Hub and four reliable sensors. If you own a home, this isn't just a gadget; it is essential insurance. Do yourself a favor and buy this before you need it!
D**E
More Sensors, More Coverage, Less Stress
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.
R**Y
Very reliable
Excellent product. Easy to install easy to use and setup. Highly recommended.
C**N
Bon produit
Facile a installer, sms et mail sans abonnement. Attention notice en anglais
C**N
Excellent
Notifications are excellent and very accurate when detecting water
M**L
It is US wifi not Uk
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.
C**N
Excellent
Works very well and detects water, notifications are excellent
Trustpilot
3 weeks ago
1 month ago