3-Pack WiFi Water Leak Detector, Water Sensor with 1m Cable | 100dB Water Alarm, App & Email Alerts, IP67 waterproof, no hub, detects leaks/drips/water level, 2.4GHz, battery 2 years

These things have now saved us a fortune. It detected a water leak near our main water stop valve, not once but twice! Both items it alerted us to a problem before it became a serious issue and we could get a plumber in to fix the issue before destroying property. I did however have to 3D print some fancy 'funnel' sort of holders, so it has the possibility of catching more water drops, should we get any. It does however have detectors on both sides of the remote probe, and then both sides of the ain box itself....so it's fairly well covered. Only improvement I'd love to see, is the alert to tell you which if the sensors is triggered on the device, but it looks like all the sensors go to a single point...probably a cost and battery saving measure, so I do understand

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 ;-)

Look like it could save an insurance claim refused

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. ⭐ ⭐ ⭐ ⭐ ⭐

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.

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

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

Ich setze bereits einige SwitchBot-Produkte ein und bin vom gesamten Ökosystem sehr überzeugt. Der Wasser-Leckdetektor reiht sich nahtlos ein: Er ist kompakt, schnell eingerichtet und liefert genau das, was man sich von einem smarten Sicherheitshelfer erwartet – zuverlässige Warnungen, bevor es teuer wird. Der Detektor reagiert sofort bei Kontakt mit Wasser und sendet über den Hub Mini umgehend eine Push-Nachricht auf mein Smartphone. So konnte ich schon bei einem minimalen Wasseraustritt an der Waschmaschine schnell reagieren – genau dafür ist so ein Gerät da! Besonders praktisch: Die Möglichkeit, den Detektor in Automationen einzubinden (z. B. zum Abschalten eines SwitchBot Plug) und sogar über Alexa oder Google Home Benachrichtigungen zu erhalten. Fazit: Für alle, die frühzeitig auf Wasserschäden reagieren wollen – sei es im Hauswirtschaftsraum, unter dem Spülbecken oder im Keller – eine klare Kaufempfehlung. Preis-Leistung top, Einrichtung in wenigen Minuten erledigt!

Two weeks after buying and installing the Switchbot Leak Detector three pack our washer started leak. I received a message on my iPhone and crisis averted. Can't get better than that! Easy to set up and use.

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!

Détection et alarme fonctionnent parfaitement