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💧 Stay dry, stay ahead — leak detection that works smarter, not harder.
The SwitchBot WiFi Water Sensor 3Pack offers ultra-sensitive 0.5mm leak detection with a 1-meter sensing cable, delivering instant 100dB alarms and real-time app notifications without needing a hub. Its IP67 waterproof design and 24-month battery life ensure reliable, maintenance-free protection for your home’s vulnerable spots.















| ASIN | B0DMW6G2LY |
| Battery Description | Alkaline |
| Battery description | Alkaline |
| Best Sellers Rank | 5,904 in DIY & Tools ( See Top 100 in DIY & Tools ) 1 in Water Detectors |
| Brand | SwitchBot |
| Colour | White |
| Compatible Devices | Smartphone, Tablet |
| Compatible devices | Smartphone, Tablet |
| Control Method | Touch |
| Country of Origin | China |
| Customer Reviews | 4.5 out of 5 stars 230 Reviews |
| Included Components | AAA Battery, User Manual, Warranty Card, Water Leak Detector with Sensor Cable*3 |
| Item Dimensions L x W x H | 5.9L x 2.5W x 5.9H centimetres |
| Item Type Name | Water Leak Detector |
| Item Weight | 68 Grams |
| Manufacturer | Wonderlabs |
| Maximum Range | 1700 Feet |
| Model Number | W4402000 |
| Mounting Type | Tabletop Mount |
| Number of Batteries | 1 A batteries required. (included) |
| Power source | Battery Powered |
| Product dimensions | 5.9L x 2.5W x 5.9H centimetres |
| Sensor Technology | Contact Sensor |
| Shape | Detector with Cable (3 Pack) |
| Smart Home Compatibility | Smart Home Compatible |
| Sound Level | 100 Decibels |
| UPC | 810150542967 |
| Unit Count | 1.0 count |
| Voltage | 3 Volts (DC) |
M**Y
SwitchBot Sensors Keep Your Home Leak‑Free (with zero hub)
I recently installed a three pack of SwitchBot WiFi Water Sensors, and they’ve become an indispensable part of my smart home setup. Integrated directly into Home Assistant without any hub, each sensor keeps an eye on my boiler tank and the bathroom sink. Whenever there’s a sudden spike in water level, whether it’s a hidden leak or a bath that’s about to overflow the sensors trigger instant alerts on my phone and dashboard, giving me peace of mind before any damage can occur. What makes these sensors truly standout is their battery life and coverage. A single charge lasts for months under normal use, and the WiFi range comfortably covers my entire house without signal loss. Coupled with an incredibly reasonable price point, the SwitchBot Water Sensors provide high‑value protection that feels like a small investment in major safety and convenience. I highly recommend them to anyone looking to add reliable leak detection to their smart home ecosystem. Switchbot your sensors are always 5-star material ;-)
N**O
Smart, Well Designed & Home Assistant Ready – Spot on from SwitchBot
I couldn’t be more impressed with this leak detector. The cabled version is fantastic value, effectively giving you three sensors in one. The engineering is smartly thought out — the top-mounted sensor sits in a dished recess, which cleverly allows drips to collect and trigger the alarm more quickly. It also has a built-in alarm for immediate local alerts, which is a lifesaver if you’re nearby. Connectivity is excellent: it works flawlessly with the SwitchBot app and cloud services, but it also integrates perfectly with Home Assistant via ESP32. In fact, setup with HA was even faster and more seamless than with the official app. Someone mentioned it didn’t work, personally didn’t have a single issue getting it to work. It was picked up by ESPHome instantly. I was torn between this and the Eufy option, but honestly this has far more bells and whistles, and the Home Assistant functionality is spot on — exactly what I needed for my setup. The build quality, design, and reliability are outstanding. I had the unfortunate experience of a copper pipe bursting (after rubbing against a rusty RSJ), which flooded two rooms in my office. I only wish I’d bought this device sooner — it would have saved me a lot of hassle. If you’re looking for a well-designed, highly reliable, and affordable leak detector, this is absolutely the one to get. ⭐ ⭐ ⭐ ⭐ ⭐
B**K
Excellent
Excellent. Fitted in my loft where we had a previous leak, under the kitchen sink and also in my dehumidifier tank so I get notified when it needs emptying. Very pleased.
J**N
Work in mist?
Look like it could save an insurance claim refused
A**R
Brilliant
Couldn't be easier to fit and set up Only downside is not possible to set up on 2 accounts as when syncing to new account wipes it from first account
A**R
Muy útil, pero falta coneccion con tuya o aunque que el móvil suena a tope..
Aunque falta mejor señal para el móvil y falta coneccion con tuya o smart life, la cosa es muy muy útil, las sondas son muy sensibles y reaccionan a todo pero no empiezan hacer ruido sin razon cuando no hace falta... y no se conecta nincon ninguna app que se pone en la caja sino solo suya propia. Pero vuelvo a comprar
A**A
Ottimo prodotto.
Mantengono le promesse e funzionano egregiamente, i sensori hanno il filo un po' troppo lungo ma alla fine si possono usare ugualemente, hanno la doppia funzione e oltre che segnalare perdite possono funzionare al contrario ed essere immersi per rilevare un abbassamento di livello. Li sto' utilizzando da mesi e fanno il loro lavoro egregiamente, ogni tanto il robot lavapavimenti bagna uno dei sensori e puntualmente parte l'allarme sia in app che in sonoro, un comodo test per evitare brutte sorprese. Posizionati: Sensore 1 - Nel sottolavello in cucina. Sensore 2 - In bagno. Sensore 3 - Dentro la tanica del climatizzatore per segnalare quando e' piena. Ottimo prodotto super consigliato!
R**I
Parfait
Détection et alarme fonctionnent parfaitement
C**S
Muy buen producto, totalmente recomendable
Lo utilizo en mi despensa y en el cuarto de la piscina, y estoy muy satisfecho. La aplicación funciona perfectamente, la integración con Alexa es impecable y, lo mejor de todo, es que funciona por Wi-Fi, a diferencia de muchos otros modelos que requieren hubs o cables. Lo recomiendo sin dudarlo.
G**I
SwitchBot Rilevatore di alluvioni WiFi/Bluetooth
Da quando ho scoperto switch bot sto creando con un unica app tante cose tra sensori, sensori porte, apertura da remoto di porta ecc ecc ecc vi parlo anche di questo prodotto che ho messo sia in zona lavatrice e uno dove ho una pompa sommersa, Installazione semplicissima Si collega direttamente al Wi-Fi (2,4 GHz) senza bisogno di hub. Setup rapido tramite app (pochi minuti) le notifiche sono immediate ti avvisa via app, email, Alexa e allarme sonoro fino a 100 dB e si sente tanto (facendo dei test). Utile per prevenire danni da lavatrice, lavastoviglie, allagamenti, Per il momento ha una buona autonomia da quando l'ho installato, switch bot dichiara fino a 2 anni di batteria grazie alla gestione intelligente. Impermeabilità e robustezza Certificazione IP67: resiste all’acqua e immersioni brevi. Che dire per il momento sono molto soddisfatto, aspetto le novità che riserva switch bot
Trustpilot
1 month ago
1 month ago