








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

| ASIN | B0CRRL9DNN |
| Audible Noise | 100 Decibels |
| Battery Description | Alkaline |
| Battery description | Alkaline |
| Best Sellers Rank | #33,824 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #106 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 1,086 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 Name | SwitchBot Water Leak Detector |
| 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) |
R**E
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!
C**N
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.
C**N
Recomendable
Va perfecto, además la app muy intuitiva me ha gustado para ampliar otros productos de la misma marca, lo único el alcance del WiFi, pero se puede poner un amplificador y sin problema
A**A
Great product
I purchased the water sensor for my indoor garden and it works great! I connected it easily through my Alexa to shut off the water pump and notify me, and now I can have peace of mind knowing that my house won’t flood while I’m out!
A**V
Capteur de fuite bien pensé
J'ai déjà plusieurs thermomètres switchbot dont je suis très content. Ce capteur de fuite parait solide et semble bien marcher suivant mes tests, avec une détection sur le support et au dessus (pour détecter un goutte à goutte avant qu'il y ai une flaque au sol).
Trustpilot
1 week ago
2 weeks ago