









๐จ Stay leak-proof, even when WiFi dropsโbecause your peace of mind deserves industrial-grade reach!
The YoLink 1/4 Mile Super Long Range Wireless Leak Sensor uses advanced LoRa technology to provide industry-leading 400-meter range and secure, encrypted communication without relying on WiFi or internet. Designed for easy installation near water sources, it offers reliable leak detection with instant app and SMS alerts. Powered by included AAA batteries lasting over 5 years, it ensures continuous operation even during power or network outages when paired with the YoLink Hub (sold separately). Ideal for smart homes and businesses seeking robust, low-maintenance water leak protection.


















| ASIN | B07Z7QWJBP |
| Best Sellers Rank | #120,607 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #235 in Motion Detectors |
| Brand | YoLink |
| Brand Name | YoLink |
| Current Rating | 3 Microamps |
| Current rating | 3 Microamps |
| Customer Reviews | 4.6 out of 5 stars 756 Reviews |
| Included Components | Valve Controller |
| Item Dimensions | 6.2 x 6.2 x 2.4 centimeters |
| Item Type Name | Water Leak Sensor |
| Item Weight | 0.08 Kilograms |
| Item dimensions L x W x H | 6.2 x 6.2 x 2.4 centimeters |
| Item weight | 0.08 Kilograms |
| Manufacturer | YoLink |
| Material | Plastic |
| Material Type | Plastic |
| Model | YS1603+YS5001+YS5004+4YS7903 |
| Mounting Type | Protruding |
| Number of Items | 1 |
| Part Number | YS7903 |
| Sensing Distance | 0.25 Miles |
| Specific Uses For Product | Amateur, Inside, Professional, indoor use only |
| Style | 0dB, without hub |
| Style Name | 0dB, without hub |
| UPC | 850024791480 750258361438 |
| Unit Count | 1 Count |
N**Y
Highly recommanded
I have a lot of Yolink items and they work perfectly. Great to monitor water leaks for my water heater, washing machine, water pressure tank and even inside my sump pit. I installed it inside (within an abs cap) right over where the pump is located. So, if it detects water, so I have still time to fix it before any damages.
C**N
Excellent
Works very well and detects water, notifications are excellent
P**L
Eu frequency is not compatible with my hub
This is the eu version that operates on a different frequency to the us hubs. It does not connect to my hub
M**L
Easy set up .... works well
Great if you need to be away and leave water on
J**Y
Fantastic Protection and Easy to Use
This device, like the other ones in the YoLink family, is exceptionally easy to put into service and well-built which gives me confidence in its reliability. I've stationed these water sensors all over the house now, having bought a bunch more. I've rigged it so that sensing a water condition (drip, spill, flood, etc.) will sound an alarm in my home office, notify me and my wife on our cell phones (by way of the app), and send me an SMS text message. I plan to get YoLink's 110dB alarm unit too, but haven't yet. Every once in a while, I test the alarm system by putting a random sensor (say, the one under the kids' bathroom sink) in a small puddle on the countertop just to reassure me that all is still operational. I really like this system! Also, the door sensors are great because it helps me keep tabs on who's filching the junk food from the basement pantry! (I pretend the door sensor is there to ensure we close the insulated door...)
Trustpilot
3 weeks ago
3 weeks ago