---
product_id: 628991676
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: "€ 82.47"
currency: EUR
in_stock: true
reviews_count: 5
category: "Yo Link"
url: https://www.desertcart.be/products/628991676-lora-smart-water-level-monitoring-sensor-wireless-battery-powered-float
store_origin: BE
region: Belgium
---

# LoRa wireless up to 1320 ft 105dB built-in siren alarm Battery-powered, no wiring 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:** € 82.47
**Availability:** ✅ In Stock

## Summary

> 💧 Stay dry, stay smart — water level alerts that never sleep!

## 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?** € 82.47 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/628991676-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

- • **Effortless DIY Setup:** Pendant-style float switch with stainless steel ballast mounts easily—no electrician required.
- • **Smart Alerts Anywhere:** Get instant push, SMS, email, or siren notifications—stay ahead of leaks and overflows remotely.
- • **Ultra-Long Range Wireless:** LoRa tech delivers up to 1/4 mile connectivity—place sensors anywhere, no WiFi needed.
- • **Versatile Water Monitoring:** Perfect for sump pumps, toilets, tanks, ponds, and more—protect your home and assets.
- • **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 float switch alarm with a powerful 105dB siren. Utilizing LoRa technology, it offers extreme long-range connectivity up to 1320 feet, enabling placement in hard-to-reach areas without WiFi. Compatible with Alexa, IFTTT, and Home Assistant, it provides real-time app, SMS, and email alerts for sump pumps, tanks, toilets, and more. Easy DIY installation and smart automation capabilities make it an essential tool for proactive water leak and overflow detection.

## Description

Water Level Sensor

Review: Bad impression - Useless,
Review: No se puede configurar. - No se puede configurar por tanto no se puede vincular con la app

## 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 |
|---------------|-------|
| ASIN | B0C3KXCY8B |
| Audible Noise | 105 Decibels |
| Battery Description | Alkaline |
| Battery description | Alkaline |
| Brand | YoLink |
| Built-In Media | Detector |
| Color | Water Leak Sensor 2 |
| Colour | Water Leak Sensor 2 |
| Compatible Devices | Smart Home Devices (such as Alexa, IFTTT, and Assistant) |
| Compatible devices | Smart Home Devices (such as Alexa, IFTTT, and Assistant) |
| Control Method | App |
| Customer Reviews | 4.2 out of 5 stars 154 Reviews |
| Item Dimensions L x W x H | 6.2L x 6.2W x 2H centimeters |
| Item Type Name | Water Level Sensor |
| Manufacturer | YOSMART |
| Maximum Range | 1320 Feet |
| Mfr Part Number | YS7904-UC |
| Model Number | YS7904 |
| Mounting Type | Wall Mount |
| Number of Batteries | 2 AAA batteries required. (included) |
| Number of Items | 1 |
| Power Source | Battery Powered |
| Power source | Battery Powered |
| Product dimensions | 6.2L x 6.2W x 2H centimeters |
| Sensor Technology | Ultrasonic Sensor or Photoelectric Sensor |
| UPC | 810121540848 810121540565 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** YoLink
- **Colour:** Water Leak Sensor 2
- **Compatible devices:** Smart Home Devices (such as Alexa, IFTTT, and Assistant)
- **Power source:** Battery Powered
- **Product dimensions:** 6.2L x 6.2W x 2H centimeters

## 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

### ⭐ Bad impression
*by ا***ل on 2 June 2026*

Useless,

### ⭐ No se puede configurar.
*by P***A on 13 May 2026*

No se puede configurar por tanto no se puede vincular con la app

### ⭐⭐⭐⭐⭐ Buy it!
*by D***E on 1 November 2025*

Wow! Love this brand. I already have some door sensors to prevent the kids sneaking out at night, and now added a high level sump pump sensor. Works like a charm, texts and alerts on my phone and the unit itself beeps in the basement. I would definitely recommend this product for many different applications.

## 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.be/products/628991676-lora-smart-water-level-monitoring-sensor-wireless-battery-powered-float](https://www.desertcart.be/products/628991676-lora-smart-water-level-monitoring-sensor-wireless-battery-powered-float)

---

*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-08-10*