---
product_id: 185757315
title: "Water Leak Sensor 3-Pack, LoRa Up to 1/4 Mile Open-Air Range Smart Water Leak & Flood Detector, SMS/Text, Email & Push Notifications, w/Alexa, IFTTT, Home Assistant - YoLink Hub Required"
brand: "yolink"
price: "£51.03"
currency: GBP
in_stock: true
category: "Yo Link"
url: https://www.desertcart.co.uk/products/185757315-water-leak-sensor-3-pack-lora-up-to-1-4
store_origin: GB
region: United Kingdom
---

# ¼ mile LoRa range 5+ years battery life Encrypted, no WiFi needed Water Leak Sensor 3-Pack, LoRa Up to 1/4 Mile Open-Air Range Smart Water Leak & Flood Detector, SMS/Text, Email & Push Notifications, w/Alexa, IFTTT, Home Assistant - YoLink Hub Required

**Brand:** yolink
**Price:** £51.03
**Availability:** ✅ In Stock

## Summary

> 💧 Stay dry, stay connected — even when WiFi fails!

## Quick Answers

- **What is this?** Water Leak Sensor 3-Pack, LoRa Up to 1/4 Mile Open-Air Range Smart Water Leak & Flood Detector, SMS/Text, Email & Push Notifications, w/Alexa, IFTTT, Home Assistant - YoLink Hub Required by yolink
- **How much does it cost?** £51.03 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/185757315-water-leak-sensor-3-pack-lora-up-to-1-4)

## 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

- • **Smart Alerts & Automation:** Receive instant SMS, email, and push notifications plus Alexa & IFTTT integration for seamless smart home control.
- • **Reliable Offline Operation:** Patented device-to-device pairing keeps sensors active even during WiFi, internet, or power outages.
- • **Battery-Powered Peace of Mind:** Includes 6 AAA batteries with over 5 years of life—no frequent replacements, no interruptions.
- • **Unmatched Long-Range Coverage:** LoRa tech delivers up to 1,320 feet open-air range—perfect for basements, garages, and remote spots.
- • **Set It & Forget It Installation:** Instant setup with no WiFi hassles—just place near vulnerable water sources and relax.

## Overview

The YoLink Water Leak Sensor 3-Pack uses industrial-grade LoRa technology to provide ultra-long-range, encrypted water leak detection without relying on WiFi or internet. Designed for effortless installation near any water source, it offers real-time alerts via SMS, email, and push notifications, plus smart home integration with Alexa and IFTTT. Powered by included AAA batteries lasting over 5 years, these sensors ensure continuous protection—even during power or network outages—making it the ultimate smart home safeguard against costly water damage.

## Description

Buy YoLink Water Leak Sensor 3-Pack, LoRa Up to 1/4 Mile Open-Air Range Smart Water Leak & Flood Detector, SMS/Text, Email & Push Notifications, w/Alexa, IFTTT, Home Assistant - YoLink Hub Required: Leak Detection Tools - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

## 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 B09FSS95G9 for a SpeakerHub (our audio, talking hub) or B07TQLKQLJ for the original Hub.
- BATTERIES INCLUDED! Two replaceable AAA batteries, good for over 5 years, are included!
- AVAILABLE AS A STARTER KIT! Search for B0BFR7WJQT

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B083Z5Z9HM |
| Battery Description | Alkaline |
| Best Sellers Rank | #1,039 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2 in Water Detectors & Alarms |
| Brand | YoLink |
| Color | White |
| Compatible Devices | YoLink Hub |
| Control Method | App |
| Customer Reviews | 4.6 4.6 out of 5 stars (6,767) |
| Item Dimensions L x W x H | 2.4"L x 2.4"W x 2.4"H |
| Manufacturer | YoSmart |
| Maximum Range | 1320 Feet |
| Mfr Part Number | YS7903-UC*3 |
| Model Number | YS7903 |
| Mounting Type | Tabletop Mount |
| Number of Batteries | 6 AAA batteries required. |
| Power Source | Battery Powered |
| Sensor Technology | Water Leak Sensor Technology |
| Smart Home Compatibility | Smart Home Compatible |
| UPC | 750258361643 |
| Voltage | 3 Volts |

## Product Details

- **Brand:** YoLink
- **Color:** White
- **Compatible Devices:** YoLink Hub
- **Power Source:** Battery Powered
- **Product Dimensions:** 2.4"L x 2.4"W x 2.4"H

## Images

![Water Leak Sensor 3-Pack, LoRa Up to 1/4 Mile Open-Air Range Smart Water Leak & Flood Detector, SMS/Text, Email & Push Notifications, w/Alexa, IFTTT, Home Assistant - YoLink Hub Required - Image 1](https://m.media-amazon.com/images/I/519l0Q74TDL.jpg)
![Water Leak Sensor 3-Pack, LoRa Up to 1/4 Mile Open-Air Range Smart Water Leak & Flood Detector, SMS/Text, Email & Push Notifications, w/Alexa, IFTTT, Home Assistant - YoLink Hub Required - Image 2](https://m.media-amazon.com/images/I/71XK5Nsf+2L.jpg)
![Water Leak Sensor 3-Pack, LoRa Up to 1/4 Mile Open-Air Range Smart Water Leak & Flood Detector, SMS/Text, Email & Push Notifications, w/Alexa, IFTTT, Home Assistant - YoLink Hub Required - Image 3](https://m.media-amazon.com/images/I/91l2SvJ12JL.jpg)
![Water Leak Sensor 3-Pack, LoRa Up to 1/4 Mile Open-Air Range Smart Water Leak & Flood Detector, SMS/Text, Email & Push Notifications, w/Alexa, IFTTT, Home Assistant - YoLink Hub Required - Image 4](https://m.media-amazon.com/images/I/91LHH3saJXL.jpg)
![Water Leak Sensor 3-Pack, LoRa Up to 1/4 Mile Open-Air Range Smart Water Leak & Flood Detector, SMS/Text, Email & Push Notifications, w/Alexa, IFTTT, Home Assistant - YoLink Hub Required - Image 5](https://m.media-amazon.com/images/I/81JcP6Jgu2L.jpg)

## Available Options

This product comes in different **Number Of Items** options.

## Questions & Answers

**Q: Can you replace the batteries?**
A: Yes, there are rubber tips on the 4 corners of the bottom, you can remove them and unscrew 4 screws and open the sensor, to replace two AAA batteries. The battery can run more than 5 years. You can search on YouTube video of how to change the YoLink water sensor's battery and can find the videos. Thanks!

**Q: Is this a dumb proprietary system or does it ingrate with smart home technologies, ie Z-wave Zigbee etc?**
A: It is not Zigbee, WiFi or Z-Wave wireless technologies, all these wireless technologies only work for short range. The YoLink system use the longest wireless range and lower power consumption. It works with the YoLink hub and can be integrate to other system through the Alexa routines, IFTTT or YoLink's API. Thanks!

**Q: Do you have any water leak sensors that have audio as well as the app reminder? Or are these just app reminders?**
A: These 3 pack leak sensors don't have build in audio sound. We have YoLink water leak sensor 2 which has build in sound, both them have app push notifications, emails and text message for leak alert.

**Q: What frimware version do you have on these D or E? Tx**
A: Mine came with 030E installed. The sensors I bought previously had 030D installed and still aren't being offered the 030E update even though they are the exact same model number. I also don't know the difference between 030D and 030E as they don't seem to publish any firmware changelog that I can find.

## Frequently Bought Together

- YoLink Water Leak Sensor 3-Pack, LoRa Up to 1/4 Mile Open-Air Range Smart Water Leak & Flood Detector, SMS/Text, Email & Push Notifications, w/Alexa, IFTTT, Home Assistant - YoLink 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
- YoLink Smart Wireless Temperature & Humidity Sensor, Wide Temp Range for Fridge, Green House, Pet Cage, App Alerts, Emails, Text/SMS alerts- Hub Required

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-07-01*