---
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"
price: "€ 81.36"
currency: EUR
in_stock: true
reviews_count: 13
url: https://www.desertcart.pt/products/185757315-water-leak-sensor-3-pack-lora-up-to-1-4
store_origin: PT
region: Portugal
---

# No WiFi or internet needed ¼ mile LoRa range 5+ years battery life 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

**Price:** € 81.36
**Availability:** ✅ In Stock

## Summary

> 💧 Stay dry, stay ahead—leak detection that’s miles beyond ordinary!

## 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
- **How much does it cost?** € 81.36 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/185757315-water-leak-sensor-3-pack-lora-up-to-1-4)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Smart Home Ready:** Seamlessly integrates with Alexa, IFTTT, and Home Assistant for a truly connected, proactive home ecosystem.
- • **Instant Alerts Anywhere:** Receive SMS, email, and push notifications so you’re always the first to know about leaks—no matter where you are.
- • **Reliable Offline Operation:** Patented device-to-device pairing keeps sensors active even during WiFi, internet, or power outages.
- • **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:** Plug-and-play design lets you protect multiple water risk zones in seconds—no tech headaches required.

## Overview

The YoLink Water Leak Sensor 3-Pack uses industrial-grade LoRa technology to provide ultra-long-range, reliable water leak detection without relying on WiFi or internet. With a simple install, 5+ year battery life, and smart home integrations, it offers professional-grade flood protection and instant alerts via SMS, email, and push notifications. Ideal for any home or business area prone to leaks, it ensures peace of mind even during power or network outages.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B083Z5Z9HM |
| Battery Description | Alkaline |
| Best Sellers Rank | #3,178 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 out of 5 stars 6,704 Reviews |
| 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 |
| Product Dimensions | 2.4"L x 2.4"W x 2.4"H |
| 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)

## 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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ works great
*by A***Y on March 27, 2026*

I’ve been very impressed with this Wi-Fi water valve system. It connects seamlessly to my phone and allows me to remotely open or close the main water supply to my house, which adds a great level of convenience and control. I paired it with a compatible water leak sensor to create a smart leak detection system. I also integrated everything with Alexa, so if a leak is detected, Alexa immediately announces an alarm both in my home and on my phone. At the same time, the system is set up so the valve automatically shuts off the water supply—even if Wi-Fi or power is down—which gives me extra peace of mind. I’ve only been using it for a few months, so I can’t yet speak to the long-term battery life of the sensors. The valve itself is connected to a 110V power source but includes a backup battery to operate during power outages, which is a great feature. Overall, I feel much more comfortable knowing my home is protected against potential water leaks. It’s a smart investment for anyone looking to prevent costly water damage

### ⭐⭐⭐⭐⭐ Peace of mind, delivered — from anywhere in the world
*by W***Y on March 31, 2026*

Water damage is one of those home disasters you don't think about until it's too late. The YoLink Water Leak Starter Kit changed that calculus for me completely — and the relief it provides is hard to overstate. Setup was remarkably straightforward. Getting the hub and four sensors up and running required minimal effort, which matters when you're dealing with hardware that's going behind appliances and under sinks. No wrestling with complicated configurations or cryptic instructions. The real magic is what happens once it's all running. If a sensor detects a leak, it automatically triggers the main water shutoff — no intervention needed, no frantic rush home, no crossed fingers. That automatic response alone is worth the price of admission. But on top of that, I can shut off my main water supply manually from anywhere, whether I'm at the office, on vacation, or just away for the weekend. That kind of remote control over something as critical as your water supply is genuinely reassuring. The LoRa long-range connectivity means the sensors stay reliably connected even in spots where other wireless devices might struggle — basements, utility rooms, far corners of the house. And the Alexa integration works seamlessly, adding another convenient way to interact with the system without reaching for your phone. If you're a homeowner who wants to stop worrying about what might be happening to your house while you're away, this kit is a no-brainer. It's practical, it's reliable, and it delivers exactly what it promises. Absolutely worth every penny.

### ⭐⭐⭐⭐⭐ Great for monitoring hard-to-reach areas
*by C***Z on April 7, 2026*

We bought the YoLink Hub + Sensor kit to monitor our attic water heater setup, including the T&P valve, cold water pipe, hot water pipe, and drain pan, as well as the water level in our basement sump area. So far it has worked very well. The biggest benefit is peace of mind. These are areas we do not check every day, so having reliable alerts makes a big difference. Setup was straightforward, the sensors connected without much trouble, and the system has been stable. Notifications have been timely, which is exactly what we wanted. If you need monitoring for places like an attic, utility area, or basement where early warning matters, this system is a great choice.

## 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 Portugal*
*Store origin: PT*
*Last updated: 2026-06-07*