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🚨 Stay dry, stay smart—leak detection that’s miles ahead!
The YoLink Water Leak Detector 4 leverages industrial-grade LoRa technology to provide an industry-leading ¼ mile wireless range without relying on WiFi. Featuring a piercing 105dB alarm, freeze warnings, and seamless smart home integration via Alexa and IFTTT, it offers professional-grade water leak protection. Easy to install with included batteries lasting over 2 years, it’s designed for comprehensive, reliable monitoring of water-prone areas, ensuring you’re alerted instantly to prevent costly damage.






| ASIN | B0CC4JQLV1 |
| Audible Noise | 105 Decibels |
| Battery Description | Alkaline |
| Best Sellers Rank | #53,664 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #50 in Water Detectors & Alarms |
| Brand | YoLink |
| Built-In Media | Detector |
| Color | Water Leak Sensor 4 |
| Compatible Devices | Android Phone, iPhone |
| Control Method | App |
| Customer Reviews | 4.8 4.8 out of 5 stars (606) |
| Item Type Name | Water Leak Sensor |
| Manufacturer | YOSMART |
| Manufacturer Warranty Description | 2 Years |
| Maximum Range | 1320 Feet |
| Mfr Part Number | YS7906 |
| Model Number | YS7906 |
| Mounting Type | Protruding |
| Number of Batteries | 2 AAA batteries required. (included) |
| Power Source | Battery Powered |
| Sensor Technology | Water Sensor |
| Smart Home Compatibility | Smart Home Compatible |
| UPC | 810121540824 |
| Unit Count | 1.0 Count |
| Voltage | 3 Volts (DC) |
A**R
YoLink Products are easy to use and work great!
YoLink products are great and easy to use (I've been using them for at least 8 years). I have their HUB, audible alarm, many water sensors, smart plugs, water valve operator, and garage door controllers. They all work seamlessly with their mobile app and are easy to set-up. The water sensors have saved my home from water damage at least 4-times. If you don't have water sensors in your home, it's only a matter of time before you experience a water even that will cost you a lot of money. YoLink's products will pay for themselves many times over because it avoids costly water damage. Garage operators provide peace of mind that garage is not open (plus can operate remotely if needed).
S**A
Great protection against flooding in your home
These have saved me a few times. Super sensitive. Lick your finger and touch the 2 prongs and it will go off immediately and send you a message. I have them near my aquarium,water heater,furness, laundry room under sinks, and even under my sewer pipe where it goes thru the foundation (yes that leaked). I bought these as a gift for a neighbor's vacation home. Theirs went off when rain water entered their basement. This is a no brainer for the cost/performance. Super easy install too. The batteries last a very long time and the app tells you the battery life.
R**G
Yolink leak sensors...Easy setup and works effectively
This water leak sensor was super easy to setup and customize. The hub is able to actively read leak sensors on three levels of the house. The first week of monitoring, it picked up water leaking onto a floor of a guest bath. Great item for "peace of mind"
A**R
Great quality and easy to set up and deploy!
YoLink has a number of high-quality products including the leak sensors I purchased. The sensory are easy to configure and deploy. So far, no leaks AND never a false alarm!
M**L
Great LoRa radio range
I have liked the Yolink line of sensors due to their long range and reliability attributed to their use of the LoRa (Long Range) radio protocol. Unfortunately, because they implement a proprietary version of the LoRa protocol, the DIYer cannot utilize any of their sensors without the Yolink Hub. Fortunately, the hub works very well and the Yolink application allows for many built-in features making their devices very easy to set up and use. From their inception, I have used their original water sensors without great success. The battery life has been excellent, with my original leak sensors utilizing 2x AAA alkaline batteries going on 4 years now (they are expected to last around 5 years + according to Yolink). I cannot speak yet to the battery life of this new leak sensor with the built-in alarm, but I suspect that the battery life will be similar, at least unless you have repeated and extended alarms which may end up draining the battery faster due to power consumption by the siren (which BTW is very loud!). Anyway, at just a couple of bucks more than the original without the integrated siren, this is a very good value as this will also alert you even if you are not next to your phone. Overall, 5 stars for ease of connectivity to the hub, reliability (works even when internet is down), battery life, fantastic range, small discreet size, and the addition of the integrated siren/alarm.
O**R
Trouble with set up but works well as promised
Works well. I already had one leak under the sink and the YoLink sensor detected and shut off the water automatically. I only had trouble in the beginning with setting up the automations because they didn’t work well. A quick call to customer support helped resolve the issue.
D**N
Water Leak Detection
No regrets yet. Setup was a breeze. All the sensors connected on the first try, no problem. The app's super easy to use and has way more features than I'll probably ever use. Can't say for sure how accurate the sensors are, but they haven't gone offline since I put them in. After dealing with a huge water leak before, these sensors are totally worth it for the peace of mind.
J**E
Buy this system!
I highly recommend this system, setup was very simple with clear instructions. I have simulated a water leak on several occasions and the system worked perfectly each time. I'm finally down with my basement flooding, thank you for a great product!
T**Y
This model has its own siren, so it is independent of the hub. When it touches water, it gives you a loud screech. The Yolink ecosystem has an incredible range. All their devices work seamlessly together. And the batteries seem to last years not months
T**Y
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.
R**L
Sans WIFI. Facile à camoufler. Programmation très simple.
N**Y
Great product. Highly recommended. YoLink does very interesting products. A++
J**Y
Works great does exactly as expected. Referred from the ATP podcast :D
Trustpilot
2 weeks ago
5 days ago