---
product_id: 527896895
title: "LoRa Smart Water Level Monitoring Sensor, Wireless Battery-Powered Float Switch Alarm, Sump Pump Alarm, AC Condensate Overflow, Tank Level, Toilet Leak Sensor, 105dB Siren, YoLink Hub Required"
brand: "yolink"
price: "€ 53.07"
currency: EUR
in_stock: true
reviews_count: 13
category: "Yo Link"
url: https://www.desertcart.gr/products/527896895-lora-smart-water-level-monitoring-sensor-wireless-battery-powered-float
store_origin: GR
region: Greece
---

# LoRa wireless up to 1320 ft 105dB built-in siren alarm Battery-powered, 2 AAA included LoRa Smart Water Level Monitoring Sensor, Wireless Battery-Powered Float Switch Alarm, Sump Pump Alarm, AC Condensate Overflow, Tank Level, Toilet Leak Sensor, 105dB Siren, YoLink Hub Required

**Brand:** yolink
**Price:** € 53.07
**Availability:** ✅ In Stock

## Summary

> 💧 Stay dry, stay smart — water level monitoring that’s always a step ahead!

## Quick Answers

- **What is this?** LoRa Smart Water Level Monitoring Sensor, Wireless Battery-Powered Float Switch Alarm, Sump Pump Alarm, AC Condensate Overflow, Tank Level, Toilet Leak Sensor, 105dB Siren, YoLink Hub Required by yolink
- **How much does it cost?** € 53.07 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/527896895-lora-smart-water-level-monitoring-sensor-wireless-battery-powered-float)

## 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

- • **Instant Smart Alerts:** Get push, SMS, email, and siren notifications so you’re always in the know, wherever you are.
- • **DIY Pendant Float Switch:** Easy install with stainless steel ballast for stable, wave-resistant water level detection.
- • **Ultra-Long Range Wireless:** LoRa tech delivers reliable signals up to 1/4 mile—no WiFi needed, no wiring hassle.
- • **Versatile Water Monitoring:** Perfect for sump pumps, toilets, tanks, ponds, and more—protect your home and assets effortlessly.
- • **Seamless Smart Home Integration:** Works with Alexa, IFTTT, and Home Assistant for automated water control and peace of mind.

## Overview

The YoLink LoRa Smart Water Level Monitoring Sensor is a wireless, battery-powered device featuring a 105dB siren and ultra-long-range LoRa connectivity (up to 1320 feet open air). Designed for versatile water level detection in sump pumps, tanks, toilets, and more, it offers easy DIY installation with a pendant float switch and stainless steel ballast. Real-time alerts via app push, SMS, email, and siren keep you informed instantly. Compatible with Alexa, IFTTT, and Home Assistant, it requires the YoLink Hub for operation and supports smart home automation for proactive water management.

## Description

YoLink LoRa Smart Water Level Monitoring Sensor, Wireless Battery-Powered Float Switch Alarm, Sump Pump Alarm, AC Condensate Overflow, Tank Level, Toilet Leak Sensor, 105dB Siren, YoLink Hub Required - desertcart.com

Review: Easy setup - Simple and effective. Connecting to your phone was easy.
Review: Great product - Works. Easy to use.

## Features

- MANY APPLICATIONS! Sump pump alarm, AC condensate pan overflow alarm, runaway toilet/jammed flapper, internal toilet leak alarm, fish tank, pond, fountain, rainwater drum/tank, cistern, water storage tank high or low level detector
- SPEND LESS, GET MORE! YoLink smart sensors are not only economical but they are part of a growing family of products compatible with your Water Level Monitoring Sensor. Shut off or turn on water on high or low level detection, turn pumps on/off, activate sirens and lights. Automatically.
- WIRE LESS! The sensor is wireless and battery-powered, with LoRa-based extreme long-range wireless (up to a 1/4 mile open-air!), so you can put your sensor where WiFi and older RF technologies can't go. No cables, conduit, raceway, trenching, or electrician required!
- EASY DIY INSTALLATION with our innovative pendant-mount style float switch. Simply hang or suspend the float switch into the monitoring tank or container. The float switch's stainless steel washers provide ballast for stability against wave action, and also provide edge/sidewall protection. Tie wraps and tie wrap mount included.
- KNOW NOW! This is a smart device with a full-featured app. Beware of products that require you be in earshot of the alarm. Types of notifications available to you include: app push notifications, email, SMS, siren or lighting activation, SpeakerHub sound or spoken messages. Each account receives 5 SMS per month per device, plus 5, free. YoLink Siren, Switch, Plug, Relay or SpeakerHub purchased separately.
- ALARMING! The sensor has a built-in 105dB sounder, for local, indoor alarms. Or, add an optional remote Siren Alarm or other YoLink alarm product. Search B0887SMPKK for the Siren Alarm.
- Looking for water depth monitoring? Our new Water Depth Sensor includes a water pressure sensor probe, capable of measuring water depths up to 16 feet (data reported in centimeters deep). Search B0C5QX3HHQ. Looking for the original Water Level Monitoring Sensor with probe? See the Water Leak Sensor 3, for applications not practical for a float switch, such as for washing machine water drain pipe backup detection. Search B08T8X4XWN
- Looking for the optional ruggedized wall-mount bracket? The optional bracket provides the sensor with additional protection against impact, casual tampering and cord removal. Search B0C4PFTFM2
- Compatible with Alexa, IFTTT and Home Assistant.
- YoLink Hub is REQUIRED! This device will not operate without one of our hubs, not included. We recommend SpeakerHub, our talking, custom tone & sound, hub. Please search B09FSS95G9 for the SpeakerHub, or B07TQLKQLJ for the original Hub.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Number of Batteries | 2 AAA batteries required. (included) |
| Control Method | App |
| Noise Level | 105 dB |
| Mounting Type | Wall Mount |
| Maximum Range | 1320 Feet |
| Sensor Technology | Sound Sensor |
| UPC | 810121540848 810121540565 |
| Manufacturer | YOSMART |
| Part Number | YS7904-UC |
| Item Weight | 8.4 ounces |
| Product Dimensions | 2.44 x 2.44 x 0.8 inches |
| Item model number | YS7904 |
| Batteries | 2 AAA batteries required. (included) |
| Style | Without Hub |
| Material | Plastic |
| Item Package Quantity | 1 |
| Coverage | 1000 Feet(Open Air) |
| Usage | Amateur, Professional, Inside |
| Included Components | Detector |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Alkaline |
| Warranty Description | 2 Years |

## Product Details

- **Color:** Water Leak Sensor 2
- **Brand:** YoLink
- **Power Source:** Battery Powered
- **Compatible Devices:** iPhone, Android Phone
- **Product Dimensions:** 2.44"L x 2.44"W x 0.8"H

## Images

![LoRa Smart Water Level Monitoring Sensor, Wireless Battery-Powered Float Switch Alarm, Sump Pump Alarm, AC Condensate Overflow, Tank Level, Toilet Leak Sensor, 105dB Siren, YoLink Hub Required - Image 1](https://m.media-amazon.com/images/I/51UgTj08bNL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy setup
*by C***. on September 12, 2025*

Simple and effective. Connecting to your phone was easy.

### ⭐⭐⭐⭐⭐ Great product
*by C***R on July 16, 2025*

Works. Easy to use.

### ⭐⭐⭐⭐⭐ using for aquarium overflow sensor
*by D***K on June 22, 2025*

Why did you pick this product vs others?: using it to catch when the aquariumd is going to overflow when i'm not home and the siphon is not working correctly has already saved me one overflow! pretty happy and use it in conjuction with my other leak sensors that i got under the same brand

## Frequently Bought Together

- YoLink LoRa Smart Water Level Monitoring Sensor, Wireless Battery-Powered Float Switch Alarm, Sump Pump Alarm, AC Condensate Overflow, Tank Level, Toilet Leak Sensor, 105dB Siren, YoLink Hub Required
- YoLink Hub, 1/4 Mile Super Long Range Smart Hub LoRa Enabled Smart Home Automation Bridge Home Security Monitoring System - Central Controller for YoLink Smart Home Devices - White
- 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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**Shop now:** [https://www.desertcart.gr/products/527896895-lora-smart-water-level-monitoring-sensor-wireless-battery-powered-float](https://www.desertcart.gr/products/527896895-lora-smart-water-level-monitoring-sensor-wireless-battery-powered-float)

---

*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-01-24*