Best Water Detectors 2026

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Last Updated - 03.02.2026

Best Choice

01

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

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9.6

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.

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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 €
02

X-Sense

X-Sense Wi-Fi Water Detector with Battery, Water Sensor IP66, WiFi Water Sensor, One Accessory for the SWS54 Water Sensor Kit, Single Packaging, Model SWS51, Pack of 1

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23% Off
9.5

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.

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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.)
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.

22,99 € 29,99 €(23% Off off)
03

Geevon

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

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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.

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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
100% MONEY BACK GUARANTEE. Each package comes with 2 x wireless water detector alarm sensors and 2 x 9V batteries. We offer 30-day free money back, 12-month warranty and lifetime advice service

14,99 €
Value for Money

04

ABUS

ABUS Water Detector HSWM10000, White, 55082

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34% Off
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.

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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)
05

ABUS

ABUS Water Detector HSWM10000, White, 55082

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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.

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Main highlights

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

10,21 €
06

Tapo

TP-Link Tapo T300 Smart Water Leak Sensor, Tapo Hub Required, Built-in 90Db Adjustable Siren, Sensor & App & Hub Alarm, IP67 Waterproof, 1+ Year Battery Life, Flexible Placement

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32% Off
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.

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Main highlights

Visible Alarm with Tapo Lights - Get a visual alarm from your smart bulb before the disaster strikes.
Up to 90 dB alarm - Let the 90 dB siren wake you up and mute the alarm with the touch of a button.
Instant app notification - Receive instant alerts when a leak occurs via the Tapo app, no matter where.
IP67 waterproof - The IP67 waterproof rating protects against wet and dusty environments.
HUB REQUIRED - Triggers the hub alarm when leakage is detected. Manage up to 64 sensors with one hub.
Flexible placement - Wireless, can be placed anywhere leaks or flooding can occur, e.g. under the sink, near the washing machine, bathtub and more.
Drip and leak warning - Reacts to drops and leaks with 6 detection probes on the top and bottom.

16,90 € 24,90 €(32% Off off)
07

Tapo

TP-Link Tapo T300 Smart Water Leak Sensor, Tapo Hub Required, Built-in 90Db Adjustable Siren, Sensor & App & Hub Alarm, IP67 Waterproof, 1+ Year Battery Life, Flexible Placement

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36% Off
8.4

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.

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Main highlights

Visible Alarm with Tapo Lights - Get a visual alarm from your smart bulb before the disaster strikes.
Up to 90 dB alarm - Let the 90 dB siren wake you up and mute the alarm with the touch of a button.
Instant app notification - Receive instant alerts when a leak occurs via the Tapo app, no matter where.
IP67 waterproof - The IP67 waterproof rating protects against wet and dusty environments.
HUB REQUIRED - Triggers the hub alarm when leakage is detected. Manage up to 64 sensors with one hub.
Flexible placement - Wireless, can be placed anywhere leaks or flooding can occur, e.g. under the sink, near the washing machine, bathtub and more.
Drip and leak warning - Reacts to drops and leaks with 6 detection probes on the top and bottom.

16,05 € 24,90 €(36% Off off)
08

X-Sense

X-Sense Wireless 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,

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35% Off
8.3

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.

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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 0.4 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

14,99 € 22,99 €(35% Off off)
09

SONOFF

SONOFF SNZB-05P Zigbee Water Detector, Smart Home Water Sensor, Water Detector for Kitchens, Cellar and Bathrooms, Water Monitor Compatible with Alexa and Google Assistant, Requires Zigbee Hub

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8.2

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.

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Main highlights

Zigbee 3.0 compatible - integrates with Zigbee Hub that uses the Zigbee 3.0 protocol, such as SONOFF ZBDongle-P, ZBDongle-E, SONOFF ZBBridge-P, ZBbridge-U, SONOFF iHost, SONOFF NSPanel Pro, SmartThings Hub v3 ..
Water leakage and drop detection - The SNZB-05P Zigbee water detector with raised probe design can detect a liquid level of 0.5 mm and allows use on metal surfaces without mistriggering by the metal. The concave design for water accumulation detects drops and stops leaks at the source.
Support the home assistant - simply add home assistant for your home automation via ZHA or Zigbee2MQTT (Zigbee dongle required, e.g. SONOFF ZBDongle-P/ZBDongle-E).
Real-time alerts and multiple notifications - The water monitor SNZB-05P immediately sends app push notifications to your phone in the event of a water leak. Local Zigbee scenes can trigger the gateway's acoustic alarm even if the Wi-Fi network fails.
Advanced detection support - SNZB-05P smart home water sensor in combination with a water leak detection cable (sold separately), regardless of whether it is wide range detection or inspection of narrow areas, water leaks can be detected.
5 years battery life - Thanks to the power supply via a CR2477 battery, the battery life is over 5 years, so you don't have to worry about frequent battery changes.

19,01 €
10

SONOFF

SONOFF SNZB-05P Zigbee Water Detector, Smart Home Water Sensor, Water Detector for Kitchens, Cellar and Bathrooms, Water Monitor Compatible with Alexa and Google Assistant, Requires Zigbee Hub

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22% Off
8.1

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

Zigbee 3.0 compatible - integrates with Zigbee Hub that uses the Zigbee 3.0 protocol, such as SONOFF ZBDongle-P, ZBDongle-E, SONOFF ZBBridge-P, ZBbridge-U, SONOFF iHost, SONOFF NSPanel Pro, SmartThings Hub v3 ..
Water leakage and drop detection - The SNZB-05P Zigbee water detector with raised probe design can detect a liquid level of 0.5 mm and allows use on metal surfaces without mistriggering by the metal. The concave design for water accumulation detects drops and stops leaks at the source.
Support the home assistant - simply add home assistant for your home automation via ZHA or Zigbee2MQTT (Zigbee dongle required, e.g. SONOFF ZBDongle-P/ZBDongle-E).
Real-time alerts and multiple notifications - The water monitor SNZB-05P immediately sends app push notifications to your phone in the event of a water leak. Local Zigbee scenes can trigger the gateway's acoustic alarm even if the Wi-Fi network fails.
Advanced detection support - SNZB-05P smart home water sensor in combination with a water leak detection cable (sold separately), regardless of whether it is wide range detection or inspection of narrow areas, water leaks can be detected.
5 years battery life - Thanks to the power supply via a CR2477 battery, the battery life is over 5 years, so you don't have to worry about frequent battery changes.

13,55 € 17,40 €(22% Off off)