SwitchBot WiFi Water Sensor, Smart Water Leak Detector, 100dB Adjustable Alerts & App Alerts, IP67 Waterproof, Wireless Detector for Kitchen, Bathroom, Basement, No Hub Required (Support 2.4G)

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 work 1) They only work over bluetooth. This is good, keeps the battery life long 2) 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.

Great product! Use it as water leak protection warning system for my tankless water heater! Easy to setup and install!

These little things work very well...they go off with even the slightest bit of water . the alarm is a decent level of loud depending on the size of your home and where its located. I have them near toilets and near my water heater, laundry. Under sinks. where there are high pressure water lines. I wish they could link to a wifi/or direct device to device connection to an emergency shut off valve. thats my only issue with it...(unless im missing something) but letting you know you have a leak is cool, shutting the water off at the main is Great!! becuz after it tells you there is a leak...if you are not home, OMG, u will freak out and then have to get home...so having it be able to link to a emergency auto shut off valve would complete the circle . they should make one , then this system would be Amazing

Absolutely perfect for our needs. When it rains really hard from the north, we get water in our basement. Thisis loud enough, it wakes me from a dead sleep when it does off. Perfectly sensitive; Just a touch of water and it goes off. I just lay it on the ground, arm it and it works... Super easy! Plus, not having to buy a gub makes it a cheap and effective tool. Easy set up on wifi too!

I have been looking for a water leak detector for a while. Most other products I found do not have wifi connectivity and wont be knowing if a leak happens when I am not at home. This is very important for Texas weather as homes here arent built for cold weather and recently temps dropping to the point of pipes getting frozen and broken. Having an ability to detect these leaks, at least at a specific location when we are not at home and get a notification on phone is a nice feature to have. Set up was breeze. Linking the devices with rest of switchbot ecosystem is easy and its working as intended. Overall I am very satisfied with this product and its functionality.

Purchased these back in September and placed them in the strategic spots I was concerned about. These were very easy to set up, and to be honest, I forgot all about them until today! These one under the front load washer stayed to squawk not long after I started a load of laundry. Admittedly, I was turning off the washer wondering why IT was making that noise, the. I noticed the small puddle of water on the floor. Something was plugging the drain in the gasket and/or into trapped something in the door unknowingly. Whatever it was sure proved to me these alarms do their job!

The SwitchBot WiFi Water Sensor is one of those devices you hope you never need—but you’ll be really glad you have it. Setup is quick, especially if you're already in the SwitchBot ecosystem. It connects over Wi-Fi or Bluetooth, so there’s no separate hub necessary to fuss with, and alerts hit your phone fast when water is detected. I would encourage anyone to connect it to their existing hub if possible. Switchbot has a lot of them (some even built into other smart devices) and I have mine included with not only Switchbot's hub but my Homey Pro. The sensor itself is small and easy to tuck under sinks, behind toilets, near water heaters, or by washing machines. Sensitivity is good—it can catch even small leaks before they turn into expensive disasters. The app notifications are loud and clear, and you can also tie it into automations (like turning off smart plugs or triggering other devices). Mine is under my kitchen sink where I've already had an issue and was kicking myself for not already having this device. Trust me it's very inexpensive for peace of mind!

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!

"installé" ( juste posé) dans ma cave sous la tuyauterie de la maison.. il m'a déjà sauvé une fois de gros dégâts en m'alertant pendant que j'étais au travail d'une fuite d'eau d'un raccord qu'il a capté de part le premier niveau du capteur ( humidité) (au delà de qq mm l'autre capteur un peu plus haut alerte aussi de fuite plus importante ) j'ai crée une automatisation pour une alerte claire qui est relayée par wifi. j'ai fait aussi un essais sur place avec l'alarme qui en position forte réveille bien... enfin je "l'emprunte" parfois lorsque je pompe les cuves l'été pour être averti quand plein ( déborde) . très pratique !

観賞魚水槽でインラインヒーターやCO2ユニットを使っており万一に備えて深めのトレイを敷いているがトラブルがあった際に携帯へすぐにアラートが飛んできてほしいので設置しました。また、半地下潜った場所にあるピットで冠水した際の警報としても使えるように追加設置しました。感度良好で良い製品です。

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!

got the switchbot water leak detector a few weeks ago after a minor basement fiasco (ugh, water everywhere). it’s been a solid little buddy since then. i have it near the water heater, and yeah, love that it alarms if anything sketchy happens. the probe deal is kinda genius – helps it reach tight spots. setting it up was (surprisingly) easy; like, i did it fast without any manual googling. works with the hub too, so it pings my phone when it senses trouble. 10/10, would buy again to avoid panic mop sessions!