I am using 3 of these with an Aqara M3 Hub. The M3 (which I would highly recommend) has a built in speaker for alarms.Adding the leak sensor to the Hub was easy and took only seconds. The Aqara phone app offered to automatically create an alarm for them.I tested them by wetting my hand and pressing them into my hand, they each immediately notified of a leak via the M3 Hub's audio alarm. They have two exposed metal screws on the back whihc sense water using an electrical signal between the screws. I beieve they would signal a leak if you had aproximately 1 mm of water, so not much. They do need to be placed flat on the surface you want to monitor. I put them in some corners of my basement where water has got in previously.I used these under Home Assitant as well (they work great with Zigbee2MQTT), but decided I liked the Aqara ecosystem features better. Either method of control works well, depending on your preference.Note that you compress the dome of the sensor to push the pairing "button". And a blue LED will blink through the dome. It's not totally obvious to do this.

Update - 11-29-2023:Added temperature sensor info below and attached image.Original Review:Bought these since they were on sale and wanted something to integrate to Home Assistant. Wasn't super on board with the idea of a "coin" style water detector (would prefer the cable type), but went with this to give it a shot. I put it next to the drain and water heater downstairs.Fast forward three months. We had a small backup in our drain downstairs and the alarm in Home Assistant went off. Saved me a lot of damage I'm sure. You will 100% want to make sure you set up multiple critical notifications in your automation and consider choosing a custom obnoxious sound. If you're sleeping, you want to make sure you don't sleep through it.The Good:-- Paid for itself already-- Integrated very nicely with my Sonoff receiver in Home Assistant.-- Fairly non-descript and small. Hard to notice on the floor.-- Fast. This thing went off immediately when water had reached it.-- Inexpensive! I'll be honest, I really wish there was a cable type Zigbee detector that wasn't $100. But this thing is just so darn inexpensive that you can get six of these for the cost of one of those plus an extension cable.The Cromulent:-- It's battery-powered. As mentioned above, I the cable type is preferred, but I'm guessing there's zero chance of a cable type without having to be plugged into an outlet. Plus you can put these wherever you need without having to worry about an outlet.-- TBD on battery life so far. I've been tracking this since I installed it in mid-July. Started at 88% with the factory-supplied battery (constant problem with Aqara) and within ten days it had dropped to 70%. It has been sitting there at 70% for three months now. I'll update this when I have to change batteries.-- The LQI shows a fairly weak connection, which is surprising given that it's only 10-15 feet away through two interior walls. Kind of surprising given that other devices that are much further away are significantly better.The Bad:-- The temperature sensors in these are utter garbage. They're the internal temperature of the device, not the room they're in. They're off by 10+ degF and should NOT be relied upon in any capacity.Overall:There really are no major primary weaknesses to this device. I'll be grabbing a couple more when they go on sale to scatter around the house. I'd like to get the Eve Water Guard but at $100 + $20/6 ft, it's really hard to justify it.The temperature sensors are useless cost adders and Aqara would be better off just removing them.

The Aqara Water Leak Sensor is a compact and responsive device that shows great promise. Its small size and quick setup make it easy to place strategically around your home. The sensor's impressive speed in detecting water leaks is a standout feature, offering peace of mind against potential water damage.  However, there are some critical limitations to consider. First and foremost, the sensor requires an Aqara hub, which excludes it from compatibility with other Zigbee hubs, even though Aqara produces some of the best in the market. This limitation is a significant drawback for power users who prefer more flexibility in their smart home ecosystem.  Additionally, while the sensor indicates a leak in the Aqara app, setting up a notification for a leak requires additional steps. The app doesn't clearly guide users through this process, which could lead to missed alerts if not configured correctly.The sensor is advertised to have a 2-year battery life, though I haven't owned it long enough to confirm this. Replacing the battery is straightforward as it uses a common coin cell battery.  Despite these shortcomings, the Water Leak Sensor's core functionality is impressive. Its rapid detection time and reliable performance make it a valuable tool for protecting your home from water damage. However, potential buyers should be aware of the limitations and be prepared to invest in an Aqara hub and spend time setting up notifications.

I have 4 of these scattered around under sinks/fridge/chest freezer/laundry room currently, after having an initial one that I used for over a year. Batteries last for ages, no complaint there. They feel of decent quality, and held up to a dog chewing on one.I have them paired into my home assistant automations, and connected to my zigbee network (I do not use Aqara hubs, nor would I), and they wake fast when wet and let me fire a notification to my phone/announce in the house/and shut off the water main all within 1 second of water touching their contacts.

The Aqara Water Leak Sensor is fantastic! It’s easy to set up, highly sensitive, and integrates smoothly with my smart home system. It sends instant alerts for even the smallest leaks, offering reliable protection against water damage. Highly recommend!

Simple easy setup, response on high water very quick.. We’re using it to control water levels in our pond.

In the realm of home automation and smart living, the Aqara Water Leak Sensor stands as a beacon of reliability and peace of mind. Paired seamlessly with my home assistant via Zigbee2MQTT, this little device has become an indispensable guardian against potential water disasters.Installation was a breeze, thanks to its compact design and straightforward setup instructions. Within minutes, it was operational and ready to safeguard against leaks under the sink or even around my hot tub area. The sensor's sensitivity is impressive, promptly detecting even the slightest hint of moisture and sending an instant alert to my smartphone.The integration with Zigbee2MQTT ensures that I can monitor the sensor's status and receive notifications directly through my preferred home automation platform. This level of connectivity allows for seamless integration into my existing smart home ecosystem, enhancing its functionality without complexity.What truly sets the Aqara Water Leak Sensor apart is its reliability. During testing, it responded swiftly to simulated leaks, triggering alerts without fail. This responsiveness gives me confidence that my home is protected around the clock, whether I'm nearby or miles away.In conclusion, if you're looking to fortify your home against water-related mishaps with a dependable and easy-to-use solution, look no further than the Aqara Water Leak Sensor. It's a must-have for any smart home enthusiast seeking both functionality and peace of mind.

Ich wollte meine Homekit basierte smarthome Landschaft um die sinnvolle Funktion „Wasserpfützen entdecken und melden“ ergänzen. Der aqara Sensor in Verbindung mit dem aqara M2 Hub ist für mich die beste Lösung. Allerdings mit Umgehung des vom Hersteller empfohlenen Installationsverfahrens 😉Meine Bedingungen waren- zuverlässige Meldung direkt in der apple home app- kein account/Cloudspeicher beim Hersteller (der icloud vertraue ich meine Daten an, den unzähligen Herstellern, die kommen und gehen nicht 🤨)- möglichst keine weitere App- kein automatischer akkustischer Signalton (Horrorszenario: bei Alarm in Abwesenheit alarmieren die Nachbarn die Feuerwehr, Türöffnung, … nein danke 🫣)Auswahlverfahren:Es gibt einen schicken Sensor von eve, der darauf ausgelegt ist, ausschließlich über homekit installiert und betrieben zu werden. Design und Konzept überzeugen, aber der Sensor hat eine interne 100db laute Sirene, die sich nicht dauerhaft stumm schalten lässt. Fällt leider weg, sonst wäre das mein Favorit geworden.Weitere Melder benötigen zwingend eine Bridge/Hub des jeweiligen Herstellers und wollen dazu zwingend eine eigene App, die wiederum ein Benutzerkonto und eine Cloudlösung des Herstellers erfordern. Will ich nicht.Die Lösung mit aqara benötigt ebenfalls eine bridge von aqara, aber die Installation ist auch direkt (!) über die apple home App möglich. Bridge und Sensoren sind bei aqara zudem sehr günstig! aqara gewinnt: aqara M2 hub (=bridge) und 3 Sensoren gekauft!Der Trick mit der Installation 😎(nicht von mir sondern von freundlichen Internetbloggern entdeckt)M2 hub am Strom anschließen, eine blecherne Stimme informiert nach einigen Sekunden, dass das Gerät im Kopplungsmodus ist. Home app öffnen und mit + Gerät hinzufügen (QR code scannen). Damit ist der M2 eingebunden.Knopf am M2 drei Mal drücken. Blechmadame informiert, dass nun Sensoren an den M2 angebunden werden können. Sensor auf stabile Unterlage stellen und 5 Sekunden auf das Symbol des Wassertropfens drücken (darunter versteckt sich ein Druckschalter). Fertig 🤗Mit dieser Lösung verzichtet man auf die vielen weiteren Möglichkeiten des M2. Der kann weit mehr als Sensordaten an apple Home weiterzuleiten, das geht dann aber wirklich nur mit der aqara App.Jetzt zum Sensor selbst:Das Teil ist winzig!!! Passt aber damit wirklich unter so ziemlich alles, was Wasser verlieren kann. Strom kommt aus einer handelsüblichen CR2032 Knopfzelle, die 2 Jahre halten soll und die einfach wechselbar ist.Der Sensor fühlt sich sehr gut verarbeitet an, sieht mit der leicht glänzenden Oberfläche gut aus und ist darüber hinaus nach IP67 wasserresistent.Der Test:macht Spaß 😄kleine Wasserpfütze produzieren, Sensor rein und keine 5 Sekunden später schlägt die home App Alarm und auch nur diese!Die Reichweite des genutzten Funkstandards Sensor - M2 Hub hat Grenzen: 1 Stockwerk und normale Zimmertür dazwischen geht, Metalltür geht nicht. Gemäß aqara soll der M2 Hub zudem nicht mehr als ca. 5m vom Router entfernt stehen, ich denke dass abhängig von Router und Repeater/Mesh-Zusammenstellung mehr geht.Mein Fazit:Zwar lässt sich das zusätzliche Zwischengerät M2 Hub nicht vermeiden, aber die so erstellte Lösung funktioniert zuverlässig, ist sehr günstig in der Anschaffung und verteilt meine Daten nicht im Netz. Und die Komponenten sehen hochwertig aus.Ich kann den Sensor und den M2 mit gutem Gewissen empfehlen ☺️

Ho recentemente acquistato il Aqara Sensore di Perdite d'Acqua 3-Pack per il mio sistema di domotica, e sono davvero soddisfatto delle prestazioni. Questi sensori si sono rivelati un'aggiunta fondamentale per la sicurezza della mia casa, specialmente per evitare danni da acqua in luoghi come cucina, bagno e seminterrato.Facilità di installazione e integrazione 🔧L'installazione è stata davvero semplice. Basta collegare i sensori al hub Aqara, che è già parte del mio sistema di automazione domestica. Una volta connessi, i sensori sono stati riconosciuti immediatamente dall'app Aqara, rendendo il tutto molto intuitivo. L'applicazione è facile da usare e consente di monitorare in tempo reale lo stato di ogni sensore.Prestazioni affidabili e sensibili 💧I sensori di perdite d'acqua sono estremamente sensibili. Li ho posizionati in punti critici come sotto il lavandino della cucina, vicino al frigorifero e nel seminterrato, e sono riusciti a rilevare anche piccole perdite di acqua. Quando rilevano umidità o allagamenti, inviano immediatamente una notifica sul mio smartphone, il che mi dà la tranquillità di intervenire prontamente, evitando danni potenzialmente costosi.Design compatto e discreto 🏠Il design dei sensori è compatto e discreto, quindi possono essere facilmente posizionati senza attirare troppa attenzione. Non occupano molto spazio e sono abbastanza leggeri da essere posizionati ovunque, pur mantenendo un'ottima sensibilità nel rilevare perdite.Compatibilità con la domotica 📱Un altro punto che ho apprezzato è la compatibilità con il mio sistema di domotica esistente. I sensori Aqara possono essere integrati facilmente con altre soluzioni smart, come Alexa e Google Assistant, e possono essere configurati per attivare altri dispositivi quando viene rilevata una perdita d'acqua. Ho impostato il sistema in modo che, quando il sensore rileva un problema, mi invii una notifica e attivi una luce lampeggiante come segnale di allarme.Durata della batteria e manutenzione 🔋La durata della batteria è molto buona. Non ho dovuto cambiarle finora, e i sensori continuano a funzionare senza interruzioni. Sono anche facili da mantenere, senza necessità di interventi complessi.Conclusioni 💡Sono estremamente soddisfatto dell'acquisto del Aqara Sensore di Perdite d'Acqua. È un sistema efficace e semplice da usare che mi dà una maggiore sicurezza contro potenziali danni da acqua. Se stai cercando un sistema di allarme per perdite d'acqua che si integri facilmente con un sistema di domotica intelligente, questi sensori sono sicuramente una scelta eccellente! 👌

Se connecte très facilement au Hub aqara (j'ai le M3)