---
product_id: 172493031
title: "Water Leak Detector, 1/4 Mile World's Longest Range, Wireless Smart Water Leak Sensor, Alexa, IFTTT, Hub Required"
brand: "yolink"
price: "₨13537"
currency: LKR
in_stock: true
reviews_count: 11
category: "Yo Link"
url: https://www.desertcart.lk/products/172493031-water-leak-detector-1-4-mile-worlds-longest-range-wireless
store_origin: LK
region: Sri Lanka
---

# ¼ mile LoRa range 5+ years battery life Encrypted device-to-device Water Leak Detector, 1/4 Mile World's Longest Range, Wireless Smart Water Leak Sensor, Alexa, IFTTT, Hub Required

**Brand:** yolink
**Price:** ₨13537
**Availability:** ✅ In Stock

## Summary

> 💧 Stay ahead of leaks with the world’s longest-range smart sensor—because your home deserves elite protection.

## Quick Answers

- **What is this?** Water Leak Detector, 1/4 Mile World's Longest Range, Wireless Smart Water Leak Sensor, Alexa, IFTTT, Hub Required by yolink
- **How much does it cost?** ₨13537 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/172493031-water-leak-detector-1-4-mile-worlds-longest-range-wireless)

## Best For

- yolink enthusiasts

## Why This Product

- Trusted yolink brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Resilient Offline Operation:** Patented Control-D2D tech keeps sensors communicating even if WiFi, internet, or power fail—peace of mind 24/7.
- • **Ultra-Low Maintenance Power:** Includes 2 AAA alkaline batteries that last over 5 years, minimizing upkeep and maximizing protection.
- • **Smart Home Integration Ready:** Seamlessly pairs with Alexa, IFTTT, and YoLink hubs for real-time alerts and automation in your connected lifestyle.
- • **Unmatched Long-Range Coverage:** Industry-leading ¼ mile open-air LoRa wireless range conquers WiFi dead zones from basements to remote outbuildings.
- • **Set It & Forget It Installation:** Surface-mount in seconds—no complex wiring or network hassles, just reliable leak detection wherever you need it.

## Overview

The YoLink Water Leak Detector leverages industrial-grade LoRa technology to deliver an unparalleled ¼ mile wireless range without relying on WiFi or internet. Designed for effortless installation and ultra-low power consumption, it operates reliably even during outages thanks to encrypted device-to-device communication. Compatible with Alexa, IFTTT, and YoLink hubs, it offers professional-grade leak detection and smart home integration, backed by a 5-year battery life and a 2-year warranty.

## Description

Buy YoLink Water Leak Detector, 1/4 Mile World's Longest Range, Wireless Smart Water Leak Sensor, Alexa, IFTTT, Hub Required: Replacement Parts - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: 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).
Review: This could be the start of a beautiful relationship... - Humphrey Bogart quote notwithstanding, this is the most impressive home automation startup I've ever dealt with. I decided to add water leak detection to my home automation setup and originally chose a DLink option, based on some positive previous experiences. But DLink's device is not ready for prime time- I never could get it to communicate properly and gave up. I then saw YoLink's leak detectors on desertcart with some very strong reviews, so I figured I'd give them a try. The system, which does require a hub, was simple to set up and worked perfectly. The LoRA technology they use has many benefits over WiFi or Bluetooth, allowing widely spaced sensors that last 2 years on 2 AA batteries, providing incredibly flexible placement options. The only thing I didn't realize is that it utilizes notifications to your cell phone or PC to alert you to a problem. I didn't want to miss a problem that happened at night when our phones are downstairs on chargers, so I looked for a siren option to add to the hub. That's when I found this product, the YoLink Speaker Hub, which apparently had just been introduced- there were only 12 reviews. But they were solid reviews and I was already impressed by the ease and performance of my YoLink detectors, so I ordered this to replace the silent hub I started with. Well, from the amazing capabilities and expansion options of the Speaker Hub, it is obvious that YoLink has big plans for a comprehensive home automation suite. This is both a good and a possibly less good thing. The flexibility to customize alarms, alerts, notifications, spoken alerts, etc is great. But the learning curve is much steeper. So to get the Speaker Hub to do what I wanted required 2 calls to customer service. And this is where YoLink blew my socks off. Both calls were answered by the second ring by a YoLink engineer! And these guys know their system software inside and out. The first call got me 90% of the way there, but one issue stumped me. The second call resolved that issue in a couple of minutes. The system now provides an audible alert that announces which detector sensed a leak, as well as sending text notifications and emails in case we weren't home. All of this happens within seconds of the sensor touching water- they even placed contacts on top of the sensor so it can detect a leak that is dripping from above before a pool of water forms. In the process of speaking to the engineers, it is clear that they are rightly proud of their product, and intend to continue improving and expanding its capabilities. The leak detectors using the Speaker Hub are a great solution on their own, but it is obvious that they've built in a ton of capabilities so that as they expand their offerings, they won't have to modify the software every time they add another device. I can't wait to see what they come up with next. Your move, YoLink!

## Features

- NO WiFi WORRIES! YoLink devices communicate by LoRa, an industrial-grade protocol that provides up to ¼ mile open air range. Devices do NOT connect to your network or even to the internet; they communicate with the Hub (Not included!). Long range, obstruction penetration, no reliance on WiFi, and fully-encrypted communications provide more than most ask for from their smart home system!
- SET IT & FORGET IT! Installs in seconds! The YoLink wireless Water Sensor could not be easier to install; just place near or under the equipment you wish to monitor. Suggested uses are near or under, toilets, water heaters, laundry machines, dishwashers, sinks, fish tanks, in or near sump pumps, and by any other location subject to water leaks and flooding.
- EXTREME LONG RANGE! Powered by LoRa technology, the long-range yet low-power system offers the industry’s longest receiving range in the market (1/4 mile). Our long-range coverage enables its use in areas challenging for most residential Wi-Fi systems, such as basements, outdoor porch/patio areas, sheds, free-standing garages, even remote outbuildings on your property.
- NO WIFI, NO INTERNET, NO POWER? NO PROBLEM! Our patented Control-D2D device-to-device pairing, over our LoRa-based wireless network, allows for devices to be paired to each other, in such a way they will continue to operate, even if WiFi is flaky, the internet goes down, or the AC power goes out!
- START SMART! A YoLink hub is required for full functionality, including for the app to work, to check battery level, etc, but your hub is compatible with a growing family of smart products for home and business! Search for B0BZBYD1MK or B09FSS95G9 for a SpeakerHub (our audio, talking hub) or B08CBTTD17 or B07TQLKQLJ for the original Hub.
- BATTERIES INCLUDED! Two replaceable AAA batteries, good for over 5 years, are included!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07Z7QWJBP |
| Batteries | 2 AAA batteries required. (included) |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Alkaline |
| Battery Description | Alkaline |
| Best Sellers Rank | #10,071 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #15 in Water Detectors & Alarms |
| Control Method | App |
| Coverage | 1000 Feet (Open Air) |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,426) |
| Date First Available | July 9, 2019 |
| Description Pile | Alkaline |
| Included Components | Valve Controller |
| Installation Method | Surface-Mounted |
| Item Package Quantity | 1 |
| Item Weight | 2.82 ounces |
| Item model number | YS7903 |
| Manufacturer | YoSmart |
| Material | Plastic |
| Maximum Range | 400 Meters |
| Mounting Type | Protruding |
| Number of Batteries | 2 AAA batteries required. (included) |
| Part Number | YS7903 |
| Performance Description | long range smart home automation |
| Product Dimensions | 2.4 x 2.4 x 0.87 inches |
| Sensor Technology | LoRa Sensor |
| Smart Home Compatibility | Smart Home Compatible |
| Special Features | Easy to Install |
| Style | 0dB, without hub |
| Switch Style | Temperature Switch |
| Temperature Range | 32-122 Degrees Fahrenheit |
| UPC | 850024791480 750258361438 |
| Usage | Amateur, Inside, Professional, indoor use only |
| Voltage | 3 Volts |
| Warranty Description | 2 Years |

## Product Details

- **Brand:** YoLink
- **Color:** White
- **Compatible Devices:** Android Phone, iPhone
- **Power Source:** Battery Powered
- **Product Dimensions:** 8"L x 3"W x 9.5"H

## Images

![Water Leak Detector, 1/4 Mile World's Longest Range, Wireless Smart Water Leak Sensor, Alexa, IFTTT, Hub Required - Image 1](https://m.media-amazon.com/images/I/51LUzFXo-yL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Is there any way to use the water leak sensor without buying an hub? I have Amazon Echo, would that work?**
A: Sorry, no. YoLink Hub is required to set up YoLink Smart Water Leak Sensor. 
You can order YoLink Smart Hub from the link https://www.amazon.com/dp/B07TQLKQLJ 
or you can order our Smart Home Security Start kit which includes this Smart Leak Sensor, Link: https://www.amazon.com/dp/B07V246GCX

**Q: Is there an audible water leak alarm without using the app? Onboard alarm?**
A: 1. For the waterproof function of the product, we do not have a sound function for YoLink Smart Water Leak Sensor;
2. We will release a YoLink Siren soon which can connect multiple YoLink water leak sensors and other YoLink safety devices,  with long distance coverage and alarm even without network connection;
3. Because of the long coverage distance of YoLink products, even if there is sound in the sensors, we still can't hear it, Alerting user's Smart Phone is more important. What's more, our YoLink Siren is even more comprehensive.
4. Reduce its own sound function, which can be waterproof and lower power consumption. The battery life of YoLink Water Leak Sensor can last for more than 5 years.

**Q: can I use to turned a switched off if it detects a tank reached a level of water?**
A: You will need a yolink outlet or a yolink wifi togle switch ( depending on the device you are wanting it to turn off ) to link the water sensor together. Then set an "if" scenario and you should be good to go.

**Q: why is there such a stark difference in battery life between water sensor 1 vs 2? version 1 is up to 5 years while version 2 only up to 2 years**
A: Water Leak Sensor 2 has a sounder. You can optionally turn off the sounder, but since that draws current from the batteries, it is factored into the battery calculations we used.  We tend to lean towards the more worse-case scenario (more frequent use, with sounder enabled) but your experience with it will vary and it could very well be closer  to 4 years than 2. 

Eric with YoSmart

## Customer Reviews

### ⭐⭐⭐⭐⭐ YoLink Products are easy to use and work great!
*by A***R on September 28, 2025*

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).

### ⭐⭐⭐⭐⭐ This could be the start of a beautiful relationship...
*by E***R on August 20, 2022*

Humphrey Bogart quote notwithstanding, this is the most impressive home automation startup I've ever dealt with. I decided to add water leak detection to my home automation setup and originally chose a DLink option, based on some positive previous experiences. But DLink's device is not ready for prime time- I never could get it to communicate properly and gave up. I then saw YoLink's leak detectors on Amazon with some very strong reviews, so I figured I'd give them a try. The system, which does require a hub, was simple to set up and worked perfectly. The LoRA technology they use has many benefits over WiFi or Bluetooth, allowing widely spaced sensors that last 2 years on 2 AA batteries, providing incredibly flexible placement options. The only thing I didn't realize is that it utilizes notifications to your cell phone or PC to alert you to a problem. I didn't want to miss a problem that happened at night when our phones are downstairs on chargers, so I looked for a siren option to add to the hub. That's when I found this product, the YoLink Speaker Hub, which apparently had just been introduced- there were only 12 reviews. But they were solid reviews and I was already impressed by the ease and performance of my YoLink detectors, so I ordered this to replace the silent hub I started with. Well, from the amazing capabilities and expansion options of the Speaker Hub, it is obvious that YoLink has big plans for a comprehensive home automation suite. This is both a good and a possibly less good thing. The flexibility to customize alarms, alerts, notifications, spoken alerts, etc is great. But the learning curve is much steeper. So to get the Speaker Hub to do what I wanted required 2 calls to customer service. And this is where YoLink blew my socks off. Both calls were answered by the second ring by a YoLink engineer! And these guys know their system software inside and out. The first call got me 90% of the way there, but one issue stumped me. The second call resolved that issue in a couple of minutes. The system now provides an audible alert that announces which detector sensed a leak, as well as sending text notifications and emails in case we weren't home. All of this happens within seconds of the sensor touching water- they even placed contacts on top of the sensor so it can detect a leak that is dripping from above before a pool of water forms. In the process of speaking to the engineers, it is clear that they are rightly proud of their product, and intend to continue improving and expanding its capabilities. The leak detectors using the Speaker Hub are a great solution on their own, but it is obvious that they've built in a ton of capabilities so that as they expand their offerings, they won't have to modify the software every time they add another device. I can't wait to see what they come up with next. Your move, YoLink!

### ⭐⭐⭐⭐⭐ Water Leak Detection
*by D***N on January 4, 2026*

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.

## Frequently Bought Together

- YoLink Water Leak Detector, 1/4 Mile World's Longest Range, Wireless Smart Water Leak Sensor, Alexa, IFTTT, Hub Required
- YoLink Smart Wireless Temperature & Humidity Sensor, Wide Temp Range for Fridge, Green House, Pet Cage, App Alerts, Emails, Text/SMS alerts- Hub Required
- YoLink Smart Home Starter Kit: Hub & Water Leak Sensor 4-Pack, SMS/Text, Email & Push Notifications, LoRa Up to 1/4 Mile Open-Air Range, w/Alexa, IFTTT, Home Assistant

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---

*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-03-10*