SwitchBot 3-Pack WiFi Water Leak Detector, Water Sensor, App/Email Alerts

Yes, this is one of the devices that most people don't prioritize having or just start to discover their existence after a leak happened. Well, I've learned it the hard way after a pipe burst in attic and there was water damage all the way to the ground floor. And funny point is that in life we all pay sometimes a ridiculous amount of insurances, some compulsory, some by choice but often useless. These flood sensors are your kind of equivalent of insurance or better said prevention from consequences of a heavy flood, just long term and relatively cheap. And if we consider what major leaks can cost - then super cheap. Let me quickly summarize the key points so far: 1. Works and works fast. Either leaks or drips, once the liquid touches the sensor you will know instantly. Just make sure you are positioning it correctly and if possible in such places so you avoid false alarms. What do I mean? Well I've placed one of mines in the bathroom corner, close to the toilet. One of the evenings we all simply jumped up of the loudness of the alarm, which was due to my sons poor aiming in the toilet. I'm under impression that loudness and unexpected scream scared him so much that it made the aiming situation even worse haha. By the way don't worry, you can change the alarm volume and duration and this is exactly what I did after this case. 2. Decent app and good notifications. Well, this one is as important as the device itself, because if leaks happen when you're not home - you want to know about this fast and be able to act fast too. Actually, it's important when you're at home too. Beside reminders and emails - the phone pop-ups are very informative and useful. Just make sure you allow them! Setup was quick and straightforward, there is no rocket science behind it. I've tested it so far with Alexa and it works. I expect it to work with other claimed services from Google and Siri, but I'd personally won't rely on this as number one interaction or communications channel. I hope for my Alexa just to notify me when batteries are low - this will be super helpful, as obviously you want these sensor to be on and running and not dead if a leak happens. Connectivity throughout the house for me is also good, but make sure to test it if you live in castles or spread multiple sensors in separately standing granny flats, garages, etc. Don't just trust the claimed 120 meters as it will depend a lot on build materials, interference, etc. To summarise: This is a device that you hope that you will never need, but trust me you want it to be in your house just in case, for peace of your mind, because if a leak happens, you will thank yourself a lot. And if you knew about such sensors and did not buy one - it will be bitter! Anyway, hope my 5 cents help a bit. Stay well and dry haha! Cheers!

Easy to set up and very responsive. The SwitchBot WiFi Water Sensor detects even small leaks quickly and sends instant app notifications without needing a hub. The built-in 100dB alarm is loud enough to hear across the house, and the IP67 waterproof design makes it safe for basements, bathrooms, or under appliances. Battery life is excellent, and the extra probe helps monitor hard-to-reach spots. A cost‑effective safeguard against water damage.

The SwitchBot WiFi Water Sensor is an absolute game-changer for home protection! Setting it up was a breeze — just connect it to your 2.4Ghz Wi-Fi, and you're good to go. No extra hub needed, which is a huge plus. The app is intuitive and user-friendly, delivering real-time alerts straight to your phone whenever it detects leaks, drips, or flooding. It’s fantastic for peace of mind, especially when you’re not home. The build quality is impressive, with an IP67 waterproof rating, making it perfect for kitchens, bathrooms, basements — pretty much anywhere. The sensitivity of this thing is unreal. It has four sensor probes and can detect even a tiny 0.5mm water level! And if something goes wrong, the 100dB alarm ensures you won’t miss it, even from afar. The app integration is smooth, and I love how it works with Alexa, Google, Siri, IFTTT, and SmartThings. It even pairs with the SwitchBot ecosystem, letting you control other devices if a leak occurs. All in all, this little device packs a serious punch. It's reliable, well-built, easy to set up, and the app makes everything super convenient. Highly recommend!

The SwitchBot WiFi Water Sensor 3 Pack is a highly practical and well-built solution for safeguarding against potential water damage in vulnerable areas like under sinks, near bathtubs, and around appliances prone to leaks. Setting up these sensors is a breeze: download the app, register, pop in the AAA batteries, and connect to your 2.4GHz Wi-Fi. They only wake up and connect to Wi-Fi when water is detected, preserving battery life without sacrificing alert speed. You’ll get real-time email and phone notifications for any leak, whether it’s a small drip or something more concerning. Each sensor pack includes sticky pads in various sizes, a handy plastic pry tool for easy battery replacement, and a cabled sensor extension for added placement flexibility. I found this incredibly useful for mounting in areas where coverage is essential. Once installed, you can control everything in the SwitchBot app, adjusting settings like alarm volume and interval notifications, setting custom automations, and even monitoring water levels. The compact size makes it easy to fit these sensors into tight spaces, and the 100dB alarm provides a loud, clear alert for those who might not be checking their phones constantly. SwitchBot’s sensors feel robust and thoughtfully designed, using quality materials that look great and hold up well over time. The IP67 waterproof rating adds peace of mind, ensuring durability even in the most humid or wet locations. Despite their quality and generally excellent reliability, there was a moment of concern during a recent leak incident under my kitchen sink, where the entire cupboard flooded but the sensors didn’t trigger an alert as expected nor did the speakers sound the alarm. Although this could have been a one-off, it’s worth noting that while the sensors have worked without a hitch in other tests, consistent reliability in real-world situations is crucial. Due to this, I'm putting the sensors down to 4 stars from 5. All in all, if you’re frequently away or have rental properties to monitor, this device is a smart investment for early water detection and avoiding major damage. For ease of setup, feature-rich app controls, and the solid build quality SwitchBot is known for, this sensor set earns a solid recommendation—just keep an eye on it to ensure it’s working as it should in critical areas.

Purchased after a water leak on a copper pipe behind washing machine. Only discovered it when the kitchen floor was covered with water. Bought a set of 3 switchbot sensors, easy to set up, work well when tested with water across the contacts and the app appears to give a timely alert. Good to have but hope not to hear the alarm anytime soon.

We’ve only tested these so far, so haven’t seen how they work in actual leak situation. But seemed easy to set up - although it took us some time to work out how to do the home share to have them on two phones at once.

I’ve never written a review on Amazon before but last night these sensors saved my kitchen from being destroyed. We recently had our kitchen done and with that came new plumbing so I thought I would give these a go just for peace of mind. Last night these alarms went off and our phones pinged. We go into the kitchen and there’s a small puddle right where one of the sensors were under one of the units and water gushing out of a fitting. We were able to stop the leak and save the brand new (expensive) kitchen from any water damage! If it wasn’t for these devices we would have woken up this morning to a full flood! Buy them for peace of mind! I’m going to buy more to put everywhere!

EDIT: Battery apparently went flat, but no notification. Had a leak and it wasn’t detected, so fundamentally failed at its job. Rating revised to one star. Original review: I have these under all my sinks and in the boiler cupboard. The app was easy to use and requests emergency notification permissions so you will get notified even if your phone is on silent. They worked fine when I tested them by placing them on a damp towel.

Tras varios meses de uso he de indicar mi total satisfacción con el producto. Compré un pack de tres tras haber probado el producto individualmente. Los tengo distribuidos por la cocina, baños y lavadero, de tal forma que me permite detectar cualquier fuga de agua antes de que provoque un problema grave. Especial mención cebo hacer del sensor que coloque junto a la toma de agua de la nevera americana, gracias a lo que me di cuenta de una ligera perdida en el conducto plástico, que de haberse rodo habría provocado un escape grande. Indicar que además del pitido que emite el propio sensor, los tengo vinculados con mi aplicación Alexa, que me permite recibir una aviso de alarma a través los altavoces , además de la notificación al móvil que tengo configurado en la propia app de Switchbot. Por todo ello debo indicar que el producto es totalmente recomendable.

Ça fonctionne bien et simple à installer

Desideravo acquistare un rilevatore di perdite d’acqua e ho colto l’occasione del Black Friday per prendere questa confezione da 3. Sono rimasto davvero soddisfatto: SwitchBot conferma ancora una volta la sua qualità. Qualità costruttiva eccellente I rilevatori sono leggermente più grandi di quanto immaginassi, ma la dimensione è perfettamente adeguata alle funzioni e non crea alcun problema nell’installazione. La struttura è solida e lo scomparto batterie è completamente ermetico, così da evitare infiltrazioni d’acqua. Confezione completa Nella confezione ho trovato: - 3 rilevatori - 3 set da 2 batterie AAA già pronte all’uso - Un pratico utensile rigido per aprire lo scomparto batterie Un kit davvero completo, pronto da installare in pochi minuti. Doppio sensore molto preciso Ogni rilevatore integra: - Sensori superiori per rilevare gocciolamenti - Sensori inferiori per rilevare acqua a terra La sensibilità è ottima e la risposta immediata. Notifiche intelligenti e allarmi indipendenti Una delle funzioni che ho apprezzato di più è la flessibilità nella connessione: - Si collega all’hub SwitchBot se presente - Oppure direttamente al Wi-Fi, senza bisogno di hub In caso di perdita invia: - Notifiche sull’app - emette un suono a 110 db - Email fino a 10 indirizzi contemporaneamente Una sicurezza in più, soprattutto se si è fuori casa. Configurazione semplicissima L’associazione all’app è stata immediata e senza intoppi. Tutto molto intuitivo, come da tradizione SwitchBot. Batterie longeve La durata dichiarata è di circa 2 anni, un ottimo valore per un dispositivo che deve funzionare in continuo. Conclusione Prodotto eccellente, affidabile e completo. SwitchBot continua a offrire soluzioni smart di qualità superiore. Rapporto qualità-prezzo ottimo. Assolutamente consigliato!

It's a life saver....I had a leak and this thing immediately warned me so I could minimized water damage. My favourite feature is the ability to link to Alexa and announce on all my Alexa devices (and phone) that a water leak is detected. Would recommend.

Tested & all work according to instructions. Seem well made. A good choice if you don’t require WiFi capability.