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No Hub Required：Direct WiFi Alerts. Get instant leak alerts via app & email without any hub —just connect to 2.4GHz WiFi for real-time remote monitoring . Share access with family for 24/7 home protection from leaks, floods, or pipe bursts. (BLE backup ensures reliability even if WiFi drops).
Ultra-Sensitive 0.5mm Detection：4 high-precision probes detect micro-leaks (as low as 0.5mm ) before major damage occurs. Place near water heaters, sinks, dishwashers , or basement sump pumps —compact design fits anywhere.
100dB Alarm + Smart Mute：Ear-piercing 100dB siren alerts you even in distant rooms (like basements). Manually silence alarms via app after resolving leaks, no annoying false alerts .
IP67 Waterproof, Up to 2 Years Battery Life: Water Leak Detector is designed with a fully sealed waterproof shell and can easily handle high humidity working environments. It comes with 2 x AAA batteries and has a battery lifespan of up to 2 years. When battery is low, our app will also send notifications to remind you to replace them in a timely manner.
Works with Alexa/Google/Siri：Voice-control via Alexa/Google/Siri or automate responses with IFTTT/SmartThings. Pair with SwitchBot Plug Mini to cut power to leaky appliances automatically.
Donavan Becker –
handy little water friend
so i’ve been using the switchbot water detector for a few months now. it’s…actually kinda great?? i plopped it near my washing machine and under the kitchen sink—those spots always make me paranoid about leaks. setup was easy (app didn’t make me tear my hair out, lol). and the alarm? loud enough to make you spring into action like your pants are on fire. it’s already saved me once when my dishwasher decided to go rogue. super chill with batteries too, haven’t had to swap ‘em yet. definitely feels worth it for peace of mind!
JTalljr –
Great product!!
Just what I was looking for. Used it in our mechanical rm downstairs near a drain for HVAC and water purifier in case of a problem. It is loud enough to be heard upstairs and have the alarm app for my phone. Very easy to set up. Great product!! No 8of
SrGuy Customer –
Sign up aint easy
Product does work as advertised.However, I am so tired after jumping through the hoops and the things that had to be done to signup for an alert email, hense 1 star off.
KD –
Quick and easy to add into Home Assistant
Quick and easy to set up! I used them with a Home Assistant – I added the integration, put batteries in the water sensor, and within five seconds HA had already recognized it (via Bluetooth) and prompted me to add the device. I didn’t even use the SwitchBot mobile app, so I can’t comment on that. So far in testing they seem to be sensitive to any water leaks. Just what I was looking for!
Kathleen Konopka –
Saved me from a flooded basement
This just saved me a flooded basement. My hot water heater rusted out and started leaking (40 gallon tank). The alert to my phone let me get the water turned off before anything was ruined.
Dawn G –
Great product!
Works well, setup was easy. Great peace of mind for my basement
Debbie Labedz –
Good stand alone solution
Cheap, easy do the job alarm loud and through the iOS app.
The Library –
Works great with Home Assistant and Shelly bluetooth switches
If you have Home Assistant for home automation and need some leak sensors these work great (as of the 2025.01 release of Home Assistant). But you need to understand how they work1) They only work over bluetooth. This is good, keeps the battery life long2) You need some whole house bluetooth receivers. If you happen to have shelly devices with the bluetooth capability (Like the plus series) then you’re all set. Because Home Assistant can configure the shelly switches to listen and pickup bluetooth signals from all over the house.If you have these things, then setup is easy. Pop the included AAA batteries in, check Home Assistant and it will say it detected a Switchbot Leak Detector. Click “Yes, set it up” and you’re done (but give it a better name). Shows up with the proper icon (water drop) and type (moisture).Now the real fun is the automation. I have a zwave whole house water shutoff device. It will turn the quarter turn valve on my incoming water line to my house. I grouped all my leak detectors and created an automation that says “If the group (IE any one of the group) detects water then shut off the whole house water valve”. Tested it out and within 1-2 seconds of a water drop the valve is turning off. It also sends me a notification too.The sensors themselves are very sensitive. The top is dished a little so if a single drop of water hits the top it will likely set it off. The bottom contacts are pretty sensitive too but would take a very small puddle just due to how the sensor is on the bottom and water spreads.They do have an alarm too, it’s not super loud, but it will get your attention if you’re in the same room. Mostly though I bought them for the Home Assistant integration. There are cheaper sensors if you just want an alarm when water hits them.Water damage is the worst thing for a house, and also the most likely. Toilets, sinks, washing machine, water heater, anything with water should have a sensor next to it and ideally some automation to cut the water. In 20 years of home ownership I’ve only had 2 major issues and both were water related (water heater once, washing machine second). I’m all prepared to never have another one (fingers crossed!) I have 12 of these spread out around my house.
Con –
This is a great little piece of kit that has helped me whilst away. It actually activated whilst I was travelling so I could send somebody around to have a look. Turned out to be a false alarm but thankful for it letting me know rather than coming home to a water leak. It’s easy to use and set up. The iPhone app is straightforward and uses notification alerts. I’ve had this for a few months and the battery seems to be OK. I have recommended this sensor to others and will be buying more in the future. A quick, easy, and cost effective way to protect yourself and your home!
Liebra –
Wij hadden regelmatig last van harde regen die door een kier bij het raam naar binnen komt. Nu worden we gewaarschuwd als de vensterbank nat wordt, nog voordat de vloer blank staat. Duidelijk hoorbare meldingen (instelbaar) en notificaties in de Switchbot-app.
Brett Coates –
Work amazing. Hooks up easy and works on WiFi without a hub.
Andreas –
Ich habe den SwitchBot WLAN Wassermelder für den Keller gekauft, um frühzeitig auf mögliche Wasserschäden reagieren zu können – und bin absolut zufrieden!Installation:Die Einrichtung war super einfach – kein Hub nötig, einfach per 2,4 GHz WLAN mit der App verbinden. Die App führt einen schrittweise durch den Prozess, der in wenigen Minuten erledigt ist.Funktion:Der Alarm ist mit seinen 100 dB richtig laut – definitiv nicht zu überhören! Zusätzlich erhält man sofort eine Push-Benachrichtigung aufs Handy, was besonders praktisch ist, wenn man gerade nicht zu Hause ist. Ich habe einen kurzen Test mit Wasser gemacht – die Reaktion war blitzschnell.Design & Verarbeitung:Das Gerät ist kompakt, sauber verarbeitet und durch IP67 auch komplett wasserdicht. Die kleinen Standfüße sorgen dafür, dass auch minimale Mengen Wasser schnell erkannt werden.Besonders gut gefällt mir:Keine zusätzliche Bridge oder Hub erforderlichFlexibel platzierbar (z. B. unter Waschmaschine, Spüle oder im Technikraum)App ist übersichtlich und leicht zu bedienenFazit:Ein Muss für alle, die sich vor teuren Wasserschäden schützen wollen – besonders in sensiblen Bereichen wie Küche, Bad oder Keller. Preis-Leistung top!
RMC –
Works perfectly.I linked it to there hub.Be prepared to hear a loud siren alarm when it comes in contact with water.Comes with regular AAA batteries.I would recommend this water sensor.