Shopping Cart

Your cart is empty.

Your cart is empty.

SwitchBot WiFi Water Sensor 4 Pack, Smart Water Leak Detector, 100dB Adjustable Alerts & App Alerts, IP67 Waterproof, Wireless Detector for Kitchen, Bathroom, Basement, No Hub Required (Support 2.4G)

Free shipping on orders over $29.99

$65.99

$ 31 .99 $31.99

In Stock

About this item

  • Real-time Notifications (No Hub Needed): After connecting to Wi-Fi, you will be able to receive real-time email and app notifications remotely when dripping, leaking, or flooding is detected, without the need to purchase an additional hub. Share devices with family, and they can also check home status at any time. (2.4Ghz Wi-fi & BLE)
  • High Sensitivity Drip Alarms: This device is equipped with four sensor probes at the top and bottom, which can detect a low water level of just 0.5mm. If water pipes drip, and your floor is submerged, or gets wet, it will sound an alarm. Water Leak Detector is compact and convenient in size, suitable for placement in laundry rooms, water heaters, dishwashers, sinks, and other places.
  • Includes Loud Alarm Sounds: To help you stay alert, we've included 100dB high pitched alarms, which means even if there is a leak in basements or places a little further away, you'll know in a timely manner. Once discovered, you can manually set it back to mute without worrying about noise issues.
  • IP67 Waterproof, Up to 18 Months 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 18 months. When battery is low, our app will also send notifications to remind you to replace them in a timely manner.
  • Part of SwitchBot Ecosystem, Voice Command Compatible: Use with SwitchBot Plug Mini or Indoor Cam, and remotely turn off electrical equipment or check the condition of your house in case of leakage. It can also support third-party services such as Alexa/Google/Siri/IFTTT/SmartThings.



Product Description

water detector for home

SwitchBot Water Leak Detector is a sensor that can help provide you with remote notifications to prevent water leakage in your home, no Hub needed.

water sensor alarm
ring water sensors
water alarm
water alarm leak detector

IP67 Waterproof

Features a waterproof shell, that can cope with high humidity environments. Meaning even when soaked in water, it can still send out notifications.

water Sensor

Compact Design

Saves space and can be easily placed in smaller areas such as refrigerators and washing machines.

water leak sensor

Simple 3 step setup.

Getting started is easy. Just install battery, long press for 2 seconds, and add to our app.

water detector alarm

Long Battery Life

With 2 x AAA batteries you can enjoy up to 2 years worth of battery life.


The Library
2025-08-31 17:15:41
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.
marycabe
2025-07-13 13:29:13
set up very easily and worked immediately. nicely done. I had trouble opening the battery compartment and used the support link. The chat is superior - bot referred me to an agent who picked up immediately.
Ke Ning
2025-06-01 20:12:47
The media could not be loaded.
ryanee
2025-02-06 18:00:19
I got this water sensor in 4 pack with much greater price than the old ones i have, and they are all the same in terms of functuons. This sensor uses AAA batteries which can be easily replaced. It took me less than 10 mins to set up all of them and now i am rest assured. Easy to use with the apps.
Recommended Products

$249.00

$ 99 .00 $99.00

4.8
Select Option

$28.69

$ 12 .99 $12.99

5.0
Select Option