---
product_id: 503537534
title: "Water Leak Detector, YoLink 1/4 Mile World's Longest Range Wireless Smart Water Leak Sensor, Hub Required"
brand: "yolink"
price: "€ 51.33"
currency: EUR
in_stock: true
url: https://www.desertcart.fi/products/503537534-water-leak-detector-yolink-1-4-mile-worlds-longest-range
store_origin: FI
region: Finland
---

# Seconds to install ¼ mile LoRa range 2-10 years battery life Water Leak Detector, YoLink 1/4 Mile World's Longest Range Wireless Smart Water Leak Sensor, Hub Required

**Brand:** yolink
**Price:** € 51.33
**Availability:** ✅ In Stock

## Summary

> 💧 Stay dry, stay ahead—detect leaks before they flood your day!

## Quick Answers

- **What is this?** Water Leak Detector, YoLink 1/4 Mile World's Longest Range Wireless Smart Water Leak Sensor, Hub Required by yolink
- **How much does it cost?** € 51.33 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/503537534-water-leak-detector-yolink-1-4-mile-worlds-longest-range)

## 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

- • **Versatile Placement Anywhere:** Perfect for basements, garages, patios, and remote outbuildings—coverage that follows your lifestyle.
- • **Secure, Private Communication:** No WiFi needed—encrypted signals protect your network and data privacy.
- • **Effortless Setup & Peace of Mind:** Install in seconds and forget—monitor critical water zones without hassle.
- • **Ultra-Low Power, High Efficiency:** Alkaline batteries last up to a decade, minimizing maintenance interruptions.
- • **Unmatched Long-Range Connectivity:** Industry-leading ¼ mile LoRa wireless range keeps you connected beyond WiFi limits.

## Overview

The YoLink Water Leak Detector leverages industrial-grade LoRa technology to deliver the longest wireless range in the market—up to ¼ mile—without relying on WiFi. Designed for ultra-easy installation, it runs on 2 included AAA alkaline batteries that can last from 2 to 10 years. The device communicates securely with a required YoLink Hub, ensuring encrypted, private signals that protect your home network. Ideal for monitoring water leaks in hard-to-reach or WiFi-challenged areas like basements, garages, and outdoor spaces, this smart sensor offers professional-grade reliability and peace of mind for modern homes.

## Description

Water Leak Detector, YoLink 1/4 Mile World's Longest Range Wireless Smart Water Leak Sensor, Hub Required

## Features

- 📶 Why Worry About WiFi? 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. Strong signal level, obstruction penetration, no (WiFi) holes in your internet security, 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. Low-power operation squeezes the most out of the batteries, which can last from 2 to 10 years!
- ⚠️ Requirements – Android or Apple smartphone, YoLink Hub or YoLink SpeakerHub is REQUIRED! (please search B09FSS95G9 for SpeakerHub, our new audio SpeakerHub or B07TQLKQLJ for the original Hub) and wired ethernet port (original Hub) or stable WiFi connection (SpeakerHub or original Hub) *Optional central station monitoring, and optional add-on SMS and automated calls subscriptions are available. App is always free, with 5 free texts per device, plus 5, per month.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Battery description | Alkaline |
| Number of batteries | 2 AAA batteries required. (included) |
| Voltage | 3 Volts |
| Control method | App |
| Mounting type | Wall Mount |
| Maximum range | 400 Metres |
| Sensor technology | Wireless Sensor |
| UPC | 850024791480 750258361438 |
| Manufacturer | YoSmart |
| Part Number | YS7903 |
| Product Dimensions | 6.1 x 6.1 x 2.2 cm; 80 g |
| Batteries | 2 AAA batteries required. (included) |
| Item model number | YS7903 |
| Style | 0dB, without hub |
| Item Package Quantity | 1 |
| Included Components | Batteries, Detector |
| Batteries included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Alkaline |
| Item Weight | 80 g |

## Product Details

- **Colour:** Pink510
- **Brand:** YoLink
- **Power source:** Battery Powered
- **Compatible devices:** Smartphone
- **Product dimensions:** 6.2L x 6.2W x 2.4H centimetres

## Images

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

## 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

## 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 Finland*
*Store origin: FI*
*Last updated: 2026-02-16*