---
product_id: 675953519
title: "SwitchBot Water Detector Wi-Fi, Water Sensor without Hub, App & Email Alert"
brand: "switchbot"
price: "€ 47.78"
currency: EUR
in_stock: true
reviews_count: 5
category: "Switch Bot"
url: https://www.desertcart.pt/products/675953519-switchbot-water-detector-wi-fi-water-sensor-without-hub-app
store_origin: PT
region: Portugal
---

# Detects water from just 0.5 mm Wi-Fi direct, no hub needed 100 dB loud alarm SwitchBot Water Detector Wi-Fi, Water Sensor without Hub, App & Email Alert

**Brand:** switchbot
**Price:** € 47.78
**Availability:** ✅ In Stock

## Summary

> 💧 Stay dry, stay smart — never miss a drip again!

## Quick Answers

- **What is this?** SwitchBot Water Detector Wi-Fi, Water Sensor without Hub, App & Email Alert by switchbot
- **How much does it cost?** € 47.78 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/675953519-switchbot-water-detector-wi-fi-water-sensor-without-hub-app)

## Best For

- switchbot enthusiasts

## Why This Product

- Trusted switchbot brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Powerful 100 dB Alarm:** Loud enough to alert you immediately, giving you peace of mind and time to act before damage escalates.
- • **Seamless Smart Home Integration:** Works with Google, Alexa, Siri, IFTTT & SwitchBot ecosystem for voice control and automated water damage prevention.
- • **Ultra-Sensitive Water Detection:** Four sensor probes detect even the tiniest drips (0.5 mm), ensuring no leak goes unnoticed in your kitchen, bathroom, or basement.
- • **Built to Brave the Wettest Spots:** IP67 waterproof design with up to 18 months battery life—perfect for high humidity areas without constant maintenance.
- • **Instant Leak Alerts, No Hub Required:** Connects directly to your 2.4 GHz Wi-Fi for real-time app & email notifications—stay ahead of water damage without extra devices.

## Overview

The SwitchBot Water Detector is a compact, IP67 waterproof smart sensor that detects water leaks as small as 0.5 mm and sends instant alerts via app and email over 2.4 GHz Wi-Fi without needing a hub. Featuring a loud 100 dB alarm and up to 18 months battery life, it integrates seamlessly with major smart home platforms to protect your home from costly water damage.

## Description

SwitchBot WiFi Water Detector, Smart Water Sensor, 100dB Adjustable Alarm & App Notification, IP67 Waterproof, Water Leak Detector for Kitchen, Bathroom, Basement, No Hub Required (Only 2.4G)

Review: This is a no-brainer! - The SwitchBot WiFi Water Sensor is one of those devices you hope you never need—but you’ll be really glad you have it. Setup is quick, especially if you're already in the SwitchBot ecosystem. It connects over Wi-Fi or Bluetooth, so there’s no separate hub necessary to fuss with, and alerts hit your phone fast when water is detected. I would encourage anyone to connect it to their existing hub if possible. Switchbot has a lot of them (some even built into other smart devices) and I have mine included with not only Switchbot's hub but my Homey Pro. The sensor itself is small and easy to tuck under sinks, behind toilets, near water heaters, or by washing machines. Sensitivity is good—it can catch even small leaks before they turn into expensive disasters. The app notifications are loud and clear, and you can also tie it into automations (like turning off smart plugs or triggering other devices). Mine is under my kitchen sink where I've already had an issue and was kicking myself for not already having this device. Trust me it's very inexpensive for peace of mind!
Review: Rilevatore di perdite SwitchBot: semplice da installare, affidabile e intelligente - Ho acquistato il rilevatore di perdite d’acqua SwitchBot a gennaio 2025 per installarlo vicino alla caldaia, così da prevenire eventuali perdite o gocciolamenti. Dopo diversi mesi di utilizzo si è dimostrato un prodotto affidabile e molto utile. L’installazione è semplicissima: si configura in pochi minuti tramite l’app SwitchBot, senza bisogno di hub, e può essere posizionato facilmente anche in spazi ristretti. Il sensore rileva immediatamente la presenza di acqua e invia notifiche istantanee sullo smartphone, oltre ad attivare un allarme sonoro ben udibile. Ottima anche l’affidabilità nel tempo: nessun falso allarme e batteria ancora in ottime condizioni. Per chi ha una caldaia in casa o in un locale tecnico, è una soluzione pratica ed efficace per aumentare la sicurezza e prevenire danni. Rapporto qualità-prezzo eccellente. Consigliato senza dubbi.

## Features

- Real-time notifications (no hub required): Connected to Wi-Fi, the water sensor sends you real-time notifications via email and app as soon as it detects water droplets, a water leak, or flooding without requiring you to buy an additional hub. Share the devices with your family so they can check the status of your home at any time. (only 2.4 GHz Wi-Fi & BLE)
- Highly sensitive drip alarm: the water detector is equipped with four sensor probes on the top and bottom, which can detect low water levels of only 0.5 mm. If water pipes drip and the floor is flooded or wet, an alarm is triggered. The water leak detector has a compact and practical design and can be installed in laundry rooms, instantaneous water heaters, dishwashers, sinks and other places.
- With loud alarm tones: To ensure you hear the alarm loud and clearly in emergency situations, we have built in a 100 dB loud alarm. Once you have detected the emergency center, the alarm can be easily switched off to solve the problem in peace.
- IP67 waterproof, up to 18 months battery life: The water detector is equipped with a fully sealed, waterproof housing and can be easily used in high humidity environments. It comes with 2 x AAA batteries and has a battery life of up to 18 months. When the battery level is low, the app prompts you to replace the batteries.
- Part of the SwitchBot ecosystem, control via voice command: use the SwitchBot Pan/Tilt Kam to remotely turn off electrical devices and check the condition of your home in case of water damage. Also compatible with third-party providers such as Google/Alexa/Siri/IFTTT/SmartThings.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CRRL9DNN |
| Audible Noise | 100 Decibels |
| Battery Description | Alkaline |
| Battery description | Alkaline |
| Best Sellers Rank | #24,509 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #86 in Safety Sensors & Detectors |
| Brand | SwitchBot |
| Built-In Media | SwitchBot WLAN water detector |
| Color | beige |
| Colour | beige |
| Compatible Devices | Washing Machine |
| Compatible devices | Washing Machine |
| Control Method | App |
| Customer Reviews | 4.5 out of 5 stars 1,047 Reviews |
| Item Dimensions L x W x H | 29L x 32W x 78H millimeters |
| Item Highlight | 100 dB alarm, IP67 waterproof, leaks from 0.5 mm, drops and water level, 2.4 GHz, battery up to 2 years |
| Item Type Name | smart water sensor |
| Item Weight | 68 Grams |
| Manufacturer | Wonderlabs |
| Maximum Range | 120 Meters |
| Mfr Part Number | W4402000 |
| Model Number | W4402000 |
| Mounting Type | Floor Mount |
| Number of Batteries | 1 A batteries required. (included) |
| Number of Items | 1 |
| Number of Packs | 1 |
| Power Source | Battery Powered |
| Power source | Battery Powered |
| Product dimensions | 29L x 32W x 78H millimeters |
| Sensor Technology | Contact Sensor |
| Shape | Detector (1 Pack) |
| UPC | 810150540437 |
| Unit Count | 1.0 Grams |
| Voltage | 3 Volts (DC) |

## Product Details

- **Brand:** SwitchBot
- **Colour:** beige
- **Compatible devices:** Washing Machine
- **Power source:** Battery Powered
- **Product dimensions:** 29L x 32W x 78H millimeters

## Images

![SwitchBot Water Detector Wi-Fi, Water Sensor without Hub, App & Email Alert - Image 1](https://m.media-amazon.com/images/I/61dTWTlfXlL.jpg)
![SwitchBot Water Detector Wi-Fi, Water Sensor without Hub, App & Email Alert - Image 2](https://m.media-amazon.com/images/I/61LUufQxqXL.jpg)
![SwitchBot Water Detector Wi-Fi, Water Sensor without Hub, App & Email Alert - Image 3](https://m.media-amazon.com/images/I/71lZsATlNKL.jpg)
![SwitchBot Water Detector Wi-Fi, Water Sensor without Hub, App & Email Alert - Image 4](https://m.media-amazon.com/images/I/61wxEnFcgBL.jpg)
![SwitchBot Water Detector Wi-Fi, Water Sensor without Hub, App & Email Alert - Image 5](https://m.media-amazon.com/images/I/71jNcMquj0L.jpg)

## Questions & Answers

**Q: How to test and verify SwitchBot App alerts and notifications?**
A: Ensure the SwitchBot App is updated, the Water Leak Detector is added with notifications enabled, Bluetooth is off, the device is submerged to trigger an alarm, and wait 30-120 seconds for Wi-Fi connection; if no alerts, check Wi-Fi or relogin.

**Q: Why is there a delay in receiving alerts from the Water Leak Detector?**
A: To save battery, Wi-Fi only activates when water is detected, taking 30-120 seconds to connect. This delay is by design for power efficiency. Use a Hub near the detector for faster alerts.

**Q: How to set up SwitchBot Water Leak Detector email notifications?**
A: Update the SwitchBot App, add the detector, then go to Profile > Preferences > Email Notifications > Important Device Notifications. Select your detector, enable "Email Alerts," and add your email. For help, reach out to us via App > Help & Feedback.

## Customer Reviews

### ⭐⭐⭐⭐⭐ This is a no-brainer!
*by R***E on 6 February 2026*

The SwitchBot WiFi Water Sensor is one of those devices you hope you never need—but you’ll be really glad you have it. Setup is quick, especially if you're already in the SwitchBot ecosystem. It connects over Wi-Fi or Bluetooth, so there’s no separate hub necessary to fuss with, and alerts hit your phone fast when water is detected. I would encourage anyone to connect it to their existing hub if possible. Switchbot has a lot of them (some even built into other smart devices) and I have mine included with not only Switchbot's hub but my Homey Pro. The sensor itself is small and easy to tuck under sinks, behind toilets, near water heaters, or by washing machines. Sensitivity is good—it can catch even small leaks before they turn into expensive disasters. The app notifications are loud and clear, and you can also tie it into automations (like turning off smart plugs or triggering other devices). Mine is under my kitchen sink where I've already had an issue and was kicking myself for not already having this device. Trust me it's very inexpensive for peace of mind!

### ⭐⭐⭐⭐⭐ Rilevatore di perdite SwitchBot: semplice da installare, affidabile e intelligente
*by C***N on 4 January 2026*

Ho acquistato il rilevatore di perdite d’acqua SwitchBot a gennaio 2025 per installarlo vicino alla caldaia, così da prevenire eventuali perdite o gocciolamenti. Dopo diversi mesi di utilizzo si è dimostrato un prodotto affidabile e molto utile. L’installazione è semplicissima: si configura in pochi minuti tramite l’app SwitchBot, senza bisogno di hub, e può essere posizionato facilmente anche in spazi ristretti. Il sensore rileva immediatamente la presenza di acqua e invia notifiche istantanee sullo smartphone, oltre ad attivare un allarme sonoro ben udibile. Ottima anche l’affidabilità nel tempo: nessun falso allarme e batteria ancora in ottime condizioni. Per chi ha una caldaia in casa o in un locale tecnico, è una soluzione pratica ed efficace per aumentare la sicurezza e prevenire danni. Rapporto qualità-prezzo eccellente. Consigliato senza dubbi.

### ⭐⭐⭐⭐⭐ Good product
*by A***N on 3 August 2026*

Does the job as it should. Very simple to use and setup.

## Frequently Bought Together

- SwitchBot WiFi Water Sensor 1 Pack, Smart Water Leak Detector, 100dB Adjustable Alerts & App Alerts, IP67 Waterproof, Wireless Detector for Kitchen, Bathroom, Basement, No Hub Required (Support 2.4G)
- SwitchBot WiFi Water Leak Detector, Smart Water Sensor with 100dB Adjustable Alarm&App Alerts, IP67 Waterproof, Wireless Detector for Home with 3.28ft Sensing Cable, No Hub Required (Support 2.4G)
- SwitchBot IP65 Indoor Outdoor Hygrometer Thermometer Wireless 3Packs, 394ft Bluetooth Range, Refrigerator Thermometer, Dewpoint/VPD/Absolute Humidity Sensor, 2-Year Battery Life, Free Data Storage

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-09-29*