SwitchBotWiFi 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) (3)

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!

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.

The alert is not loud enough, works very well with Smartthings (getting push notification when there is an alert).

This water leak alarm works great, the app is easy to set up, the alarm itself is loud, and the battery life is decent. I especially like how sturdy the casing is, as it ensures that the alarm is durable. I bought two, I put one under the kitchen sink and the other under the water heater.

The media could not be loaded. 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.

Easy to set up, Unit worked as it should, notification and alarm sensor went off after set up a few days with the high humidity we experienced water dripping from water tank. Nothing major, but it was reassuring in the event a leak would occur. I would definitely recommend also battery life is good.

Love these! They work flawlessly. I have 7 of these in various locations - under the bathroom and kitchen sinks, under the refrigerator ice maker water supply line, next to the hot water heater and under the washing machine. The text message, push notification, and email alert options are great as an alternative to an audible alarm for households with pets that freak out from audible alarms!

Brought two different brand and find this is easy operate, small size with loud warning sound. Out of my expectation, it comes with batteries and I could use it at once.