---
product_id: 527896895
title: "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"
brand: "yolink"
price: "22069 Ft"
currency: HUF
in_stock: true
reviews_count: 13
category: "Yo Link"
url: https://www.desertcart.hu/products/527896895-yolink-lora-smart-water-level-monitoring-sensor-wireless-battery-powered
store_origin: HU
region: Hungary
---

# LoRa wireless up to 1/4 mile Battery-powered, no wiring 105dB built-in siren alarm 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

**Brand:** yolink
**Price:** 22069 Ft
**Availability:** ✅ In Stock

## Summary

> 💧 Never miss a drop—smart water level alerts that keep you ahead of the flood!

## Quick Answers

- **What is this?** 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 by yolink
- **How much does it cost?** 22069 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/527896895-yolink-lora-smart-water-level-monitoring-sensor-wireless-battery-powered)

## 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

- • **True Wireless Freedom:** Battery-powered and cable-free for effortless DIY installation anywhere you need it.
- • **Smart Home Integration:** Seamlessly works with Alexa, IFTTT, and Home Assistant for automated water management.
- • **Instant Multi-Channel Alerts:** Get push notifications, SMS, email, and loud 105dB siren alarms—never miss a leak or overflow.
- • **Ultra-Long Range Connectivity:** Stay connected up to 1320 feet with LoRa tech—no WiFi dead zones here!
- • **Versatile Water Level Monitoring:** Perfect for sump pumps, toilets, tanks, ponds, and even your Christmas tree water level.

## Overview

The YoLink LoRa Smart Water Level Monitoring Sensor is a wireless, battery-powered float switch alarm designed for versatile water level detection. Featuring ultra-long-range LoRa connectivity up to 1/4 mile, a loud 105dB siren, and multi-channel smart alerts via app, SMS, and email, it ensures you stay informed of leaks, overflows, or low water levels in sump pumps, tanks, toilets, and more. Easy DIY installation and compatibility with Alexa, IFTTT, and Home Assistant make it a must-have for proactive water management. Requires YoLink Hub for operation.

## Description

desertcart.com: 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 : Industrial & Scientific

Review: Perfect for Monitoring Christmas Tree Water Levels - I bought this to monitor the water level in my Christmas tree stand, and it’s been perfect for that. It alerts me when the water gets low so I can refill it before the tree dries out—no more needles all over the floor. Setup was easy, alerts are reliable, and the LoRa range works great even with the tree not near my router. For a non-traditional use case, it’s worked flawlessly. Simple solution that actually does what it’s supposed to do.
Review: Awesome product - This product is perfect for what I need. I have it in a sealed septic tank in the yard and it gives me piece of mind should my pump failed. I tested it after installing and it worked perfectly. Got an alarm to phone and email. It's nice that the base can sit in my house and plug into router because then I have extended Wifi for the sensor. The sensor is a little ways away from router but no connectivity issues at all. Very strong signal. I have had to contact product support for a question and they got back to me same day. Fantastic service.

## 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 |
| Batteries | 2 AAA batteries required. (included) |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Alkaline |
| Battery Description | AA |
| Best Sellers Rank | #53,129 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #50 in Water Detectors & Alarms |
| Control Method | App |
| Coverage | 1000 Feet(Open Air) |
| Customer Reviews | 4.3 4.3 out of 5 stars (194) |
| Date First Available | November 24, 2020 |
| Description Pile | AA |
| Included Components | Detector |
| Item Package Quantity | 1 |
| Item Weight | 8.4 ounces |
| Item model number | YS7904 |
| Manufacturer | YOSMART |
| Material | Plastic |
| Maximum Range | 1320 Feet |
| Mounting Type | Wall Mount |
| Noise Level | 105 Decibels |
| Number of Batteries | 2 AAA batteries required. (included) |
| Part Number | YS7904-UC |
| Product Dimensions | 2.44 x 2.44 x 0.8 inches |
| Sensor Technology | Sound Sensor |
| Smart Home Compatibility | Smart Home Compatible |
| Style | Without Hub |
| UPC | 810121540848 810121540565 |
| Usage | Amateur, Inside, Professional |
| Warranty Description | 2 Years |

## Product Details

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

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/51UgTj08bNL.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect for Monitoring Christmas Tree Water Levels
*by M***M on January 29, 2026*

I bought this to monitor the water level in my Christmas tree stand, and it’s been perfect for that. It alerts me when the water gets low so I can refill it before the tree dries out—no more needles all over the floor. Setup was easy, alerts are reliable, and the LoRa range works great even with the tree not near my router. For a non-traditional use case, it’s worked flawlessly. Simple solution that actually does what it’s supposed to do.

### ⭐⭐⭐⭐⭐ Awesome product
*by S***R on October 16, 2025*

This product is perfect for what I need. I have it in a sealed septic tank in the yard and it gives me piece of mind should my pump failed. I tested it after installing and it worked perfectly. Got an alarm to phone and email. It's nice that the base can sit in my house and plug into router because then I have extended Wifi for the sensor. The sensor is a little ways away from router but no connectivity issues at all. Very strong signal. I have had to contact product support for a question and they got back to me same day. Fantastic service.

### ⭐⭐⭐⭐⭐ Great sensor
*by M***Z on January 24, 2026*

Great sensor

## 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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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-02-28*