Best Water Detectors 2026

Advertising Disclosure

Last Updated - 22.07.2026

Best Choice

01

X-Sense

X-Sense SWS0A41 WLAN Water Detector with SBS50 Base Station, Smart Water Detector, App Warnings (Only 2.4 Ghz), Waterproof to IP67, Wireless Water Sensor for Kitchen, Bathroom, Basement, SWS0A41, Set of 5

14% Off

Show more
9.7

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Works in humid environments: thanks to the protection class IP67, this water detector meets even in damp rooms, e.g. near dishwashers or water heaters, reliable its purpose. Once installed, it is maintenance-free as the batteries last up to 3 years - and by simply changing the service life can be extended to 5 years
Top & Bottom Sensors This water detector has two sensitive water probes on the top and four on the bottom. This allows it to detect both water accumulation from a depth of only 0.3 mm and drops from above. So you will be informed immediately as soon as water leaks unexpectedly without having to check for yourself
SLIM DESIGN EASY INSTALLATION This water sensor fits into tight and hard-to-reach areas thanks to its compact design; the device is only 17mm thick and has a diameter of 77mm
One APP with many functions: adjust the alarm volume of the base station, mute the alarm and view the alarm history via the app. Tap "Remind later" to temporarily mute the alarms (10 minutes, 30 minutes, 2 hours, 6 hours or 12 hours). Via the app, you can test the device, receive low battery warnings and share the sensor with others
Long range: You can confidently place this sensor in an outbuilding or a remote corner: with a wireless range of up to 500 m in open areas, you can receive notifications via the app at any time, regardless of its location
Don't miss a leak: if a water leak is detected, a red light on the water sensor flashes and the base station emits an alarm up to 100 dB. In addition, you will be notified via app on your mobile phone (only 2.4G) - so you will be informed about leaks in your home even on the go
Detects leaks throughout the home: this wifi water sensor detects leaks on and in windows, bathrooms, kitchens, garages, toilets, sinks, water pipes, laundry rooms, basements and wine cellars
Base station alarm: if water is detected, a red LED flashes on the water detector. However, an acoustic alarm is only issued by the base station. If you want a model where both the device and the base station emit a sound, we recommend the X-Sense SWS54 kit with WiFi water detector

77,66 € 89,99 €(14% Off off)
02

X-Sense

X-Sense Smart Water Detector with Battery, WLAN Water Sensor, Compact Flood Sensor with Adjustable Volume of up to 110 dB and 500 m Range, for Kitchens, Basements and Bathrooms

Show more
9.4

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Waterproof according to IP66: the waterproof class IP66 allows it to be used in humid environments, e.g. near appliances that use water, such as dishwashers, water heaters or washing machines. The robust structure and rust-proof outer coating allow for long-term use.
WIRELESS & SLIM DESIGN No wiring or setup required. Thanks to its diameter of only 29 mm, this water leak sensor is small and compact enough to fit anywhere. It blends harmoniously into any home decor and has a service life of 5 years. It also has replaceable batteries that last about 3 years (included).
REAL TIME NOTIFICATIONS In case of detecting a water leak, a push notification will be sent to your phone, so you will be warned quickly even when you are away from home. You can share the device with your family members so they can check the device status anytime and anywhere.
Please note: this device is NOT compatible with voice control systems such as Alexa.
High Sensitivity This water leak detector is equipped with 2 upper and 4 lower sensors to detect water leaks and floods. It detects a minimum water level of 0.4 mm and warns of water damage early by flashing the LED light red.
Customize your needs: real-time app alerts, device test function, low battery warning, activation of sharing function, etc. The "Remind later" function allows you to temporarily mute the system, and the timer can be set to 10 minutes/30 minutes/2 hours/6 hours/12 hours.
AUDIBLE ANYWHERE - Once the alarm is triggered, the warning sound will sound simultaneously from both the water leak sensor and the base station with a volume of up to 110dB - this is loud enough for everyone to hear it. Simply mute the alarm via the app or press the mute button on the base station or water leak sensor.

59,99 €
Value for Money

03

ABUS

ABUS Water Detector HSWM10000, White, 55082

34% Off

Show more
9.2

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Suitable for use on the floor in the kitchen, bathroom or cellar.
Immediate acoustic reaction upon contact with water.

13,25 € 20,00 €(34% Off off)
04

Shelly

Shelly Flood Gen4 - Smart Matte Water Sensor with Leak Sensor Cable, IP44, Flood & Rain Detection, Adjustable Alarm Levels, Leak Detection, Timer Switch, Alexa, Google Home & Zigbee

Show more
9.1

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

WIFI + SERIES - 2.4 & 5 GHz WiFi for uninterrupted smart home control; Bluetooth, Zigbee and Matter for simplified setup
Setting and zones: Use the Shelly Smart Control app or voice assistants such as Alexa, Google Home or SmartThings to set timers, create scenes and automate your home – no matter what you need to do
Now with integrated Matter and Zigbee compatibility, improved computing power and advanced scripting functions for even smarter automation
Maximum washing: detects leaks, water accumulation or penetrating rainwater; the sensor has an innovative leak sensor cable that covers up to 2 metres: ideal for basements, kitchens, washrooms as well as for use under household appliances
BATTERY AND PROTECTION PROTECTION: Long-lasting AA batteries and IP44 protection ensure reliable use in damp or hard-to-reach areas
Automatic alarm: three integrated water alarm levels - intense, normal and economy mode - with built-in buzzer for quick responses

30,90 €
05

X-Sense

X-Sense Wi-Fi Water Detector with Battery, Water Sensor IP66, WiFi Water Sensor, One Accessory for SWS54 Water Sensor Kit, Single Pack, Model SWS51, Pack of 3

Show more
9.0

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Waterproof according to IP66: the waterproof class IP66 allows it to be used in humid environments, e.g. near appliances that use water, such as dishwashers, water heaters or washing machines. The robust structure and rust-proof outer coating allow for long-term use
WIRELESS & SLIM DESIGN No wiring or setup required. Thanks to its diameter of only 29 mm, this water leak sensor is small and compact enough to fit anywhere. It blends harmoniously into any home decor and has a service life of 5 years. It also has replaceable batteries that last about 3 years (included)
REAL TIME NOTIFICATIONS In case of detecting a water leak, a push notification will be sent to your phone, so you will be warned quickly even when you are away from home. You can share the device with your family members so that they can check the device status anytime and anywhere (Note: the SWS51 water leak sensor must be paired with the X-Sense SBS50 base station for startup.)
Packing list: 3 x water sensor, 6 x AAA (built-in)
Note: SWS51 must be combined with a base station to enable intelligent functions.
High Sensitivity The SWS51 water leak detector is equipped with 2 sensor probes on the top and another 4 sensors at the bottom to detect water leaks and flooding. The device warns you early of possible water damage and is particularly suitable for kitchens, bathrooms, cellars and other areas
EXPAND YOUR SMART HOME IN YOUR OWN WAY The SWS51 water leak sensor is an accessory for the SWS54 kit that connects to the SBS50 base station. The transmission distance is 500 m. To connect the sensor to the base station and pair up to 50 devices, simply press the test/mute/pair button
Customize your needs: real-time app alerts, device test function, low battery warning, activation of sharing function, etc. The "Remind later" function allows you to temporarily mute the system, and the timer can be set to 10 minutes/30 minutes/2 hours/6 hours/12 hours
AUDIBLE ANYWHERE - Once the alarm is triggered, the warning sound will sound simultaneously from both the water leak sensor and the base station with a volume of up to 110dB - this is loud enough for everyone to hear it. Simply mute the alarm via the app or press the mute button on the base station or water leak sensor

51,91 €
06

X-Sense

X-Sense SWS0A WiFi Water Detector, Smart Water Detector, with App Warnings (Only 2.4 GHz), Waterproof to IP67, Wireless Water Sensor for Kitchen, Bathroom, Basement, SBS50 Base Station Required, SWS0A

12% Off

Show more
8.9

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Works in humid environments: thanks to the protection class IP67, this water detector meets even in damp rooms, e.g. near dishwashers or water heaters, reliable its purpose. Once installed, it is maintenance-free as the batteries last up to 3 years - and by simply changing the service life can be extended to 5 years
Top & Bottom Sensors This water detector has two sensitive water probes on the top and four on the bottom. This allows it to detect both water accumulation from a depth of only 0.3 mm and drops from above. So you will be informed immediately as soon as water leaks unexpectedly without having to check for yourself
SLIM DESIGN EASY INSTALLATION This water sensor fits into tight and hard-to-reach areas thanks to its compact design; the device is only 17mm thick and has a diameter of 77mm
One APP with many functions: adjust the alarm volume of the base station, mute the alarm and view the alarm history via the app. Tap "Remind later" to temporarily mute the alarms (10 minutes, 30 minutes, 2 hours, 6 hours or 12 hours). Via the app, you can test the device, receive low battery warnings and share the sensor with others
Note: To use the functions of the app (only 2.4G), you also need the base station SBS50 (not included)
Long range: You can confidently place this sensor in an outbuilding or a remote corner: with a wireless range of up to 500 m in open areas, you can receive notifications via the app at any time, regardless of its location
Don't miss a leak: if a water leak is detected, a red light on the water sensor flashes and the base station emits an alarm up to 100 dB. In addition, you will be notified via app on your mobile phone - so you will be informed about leaks in your home even on the go
Detects leaks throughout the home: this wifi water sensor detects leaks on and in windows, bathrooms, kitchens, garages, toilets, sinks, water pipes, laundry rooms, basements and wine cellars
Base station alarm: if water is detected, a red LED flashes on the water detector. However, an acoustic alarm is only issued by the base station. If you want a model where both the device and the base station emit a sound, we recommend the X-Sense SWS54 kit with WiFi water detector

52,99 € 59,99 €(12% Off off)
07

Geevon

Geevon Water Detector Water Alarm, 100 dB Water Detector, Water Sensor Alarm, Battery Operated for Basements, Bathrooms, Laundry Rooms, Kitchens, Garages and Attics (Supplied with Battery) (White, 2 Packs)

24% Off

Show more
8.8

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Wherever leaks happen – Geevon water leak detector for residential houses with 3.15 inches diameter and 1.18 inches height, which can be easily placed anywhere you want, such as basements, bathrooms, under sinks or through water heaters to detect the leaks while they occur. Don't let the water outlet damage your property and cost your money
Water alarm battery operated. Water detector alarm is powered by 6F22 9V battery (supplied with battery). No wiring or screws required. Unwind the included battery and install it. Then place the water detector in areas where leaks and flooding may occur
LOUD 100 dB water alarms for home - Each water alarm leak detector has ultra-loud 100 dB alarm audio, which is loud enough to be heard throughout the house, even if leak happens in the cellar, garages or wine cellar. The water detector sensor sounds as soon as the water is detected and warns you of water leakage to avoid flooding
Highly sensitive water sensor: basement water sensor alarm with three metal prongs embedded on the bottom, is made of high-quality ABS materials and electronic parts and waterproof design, it is okay to float on water to detect leaks to prevent water damage

15,19 € 19,99 €(24% Off off)
08

WIOONI

WIOONI Water Detector WLAN with Battery, IP66 Water Sensor, 80 dB Water Alarm Compatible with Tuya/Smart Life App, Water Monitor for Kitchens, Bathrooms, Basements

10% Off

Show more
8.7

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Real-time notifications: the water detector pairs with your Tuya or Smart Life app via Bluetooth and then connects to your WiFi (2.4 GHz). Get instant push notifications to your smartphone – without additional hub.
Loud 80 dB alarm: When in contact with water, a penetrating 80 dB alarm sounds - loud enough to warn you even in the cellar or adjoining room. Each alarm sound lasts up to 15 seconds until it can be manually mute by TEST button.
Long battery life: this water sensor is powered by 2 AAA batteries (included). The energy-saving technology provides up to 2 years of standby operation. A flashing LED warns early when the battery is low.
IP66 waterproof: the water detector is equipped with a fully sealed, waterproof housing and can be easily used in environments with high humidity. For precise detection, the device must stand level so that all 4 ground sensors are in contact.
Advanced 2-in-1 function: the WIOONI water leak detector is equipped with 2 sensor probes on the top and another 4 sensors on the bottom to detect water leaks and flooding. The device warns you early of possible water damage and is particularly suitable for kitchens, bathrooms, cellars!

17,99 € 19,99 €(10% Off off)
09

SwitchBot

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

27% Off

Show more
8.6

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

With loud alarm sounds: In order to hear the alarm loud and clear in emergency situations, we have built in a 100 dB loud alarm. Once you have detected the emergency center, the alarm can be easily switched off to solve the problem in peace.
Real-time notifications (no hub required): Connected to the WiFi, the water detector sends real-time notifications to you via email and app as soon as it detects drops of water, a water leak or flooding without the need to buy an additional hub. Share the devices with your family so they can check the status of your home at any time. (only 2.4 GHz Wi-Fi & BLE)
Part of the SwitchBot ecosystem, control via voice command: use the SwitchBot Pan/Tilt Kam to remotely turn off electrical devices and check the condition of your home in case of water damage. Also compatible with third party sellers such as Google/Alexa/Siri/IFTTT/SmartThings.
IP67 waterproof, up to 18 months battery life: The water detector is equipped with a fully sealed, waterproof housing and can be easily used in high humidity environments. It comes with 2 x AAA batteries and has a battery life of up to 18 months. When the battery level is low, the app prompts you to replace the batteries.
Highly sensitive drip alarm: the water detector is equipped with four sensor probes on the top and bottom, which can detect low water levels of only 0.5 mm. If water pipes drip and the floor is flooded or wet, an alarm is triggered. The water leak detector has a compact and practical design and can be installed in laundry rooms, instantaneous water heaters, dishwashers, sinks and other places.

15,99 € 21,99 €(27% Off off)
10

SEBSON

SEBSON Mini GS153 Water Detector, 10 Year Long-Lasting Battery, Water Alarm, Water Monitor 60 x 60 x 24.2 mm, Water Sensor with Lithium Battery, Pack of 3

Show more
8.5

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

When the battery is almost consumed, a warning signal sounds to alert you.
Used for early detection of water damage. If the water sensor comes into contact with water, an 85 dB loud warning signal sounds.
This water monitor is suitable for the floor in the basement, kitchen, bathroom, garage, boiler rooms and many more.
This small mini water alarm measures 60 x 60 x 24.2 mm.
GS153 water detector with permanently installed 10-year lithium long-term battery.

41,99 €