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Best Water Detectors - Holiday Sale

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Last Updated - 18.12.2025

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

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9.8

Exceptional

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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
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

79,99 €
Value for Money

02

X-Sense

X-Sense Smart Water Detector, WLAN Water Sensor, Compact Flood Sensor with Adjustable Volume of up to 110 dB and 500 m Range, for Kitchens, Basements and Bathrooms, SWS55

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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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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 making the LED light flash 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

69,99 €
03

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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9.3

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

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 €
04

ABUS

ABUS Water Detector HSWM10000, White, 55082

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9.1

Excellent

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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 €
05

PROTECTOR

PROTECTOR WA-11 WLAN Water Detector, Triple Safety: Alarmed, Switches Connected Device Optionally On or Off, Reports to Your Mobile Phone. Pump Control, Smart Water Alarm with App, Aquastop

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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

Wide range of uses - Perfect as a water monitor for basements, washing machines, pump shafts and aquariums - protects against expensive damage.
Triple safety: In addition to the alarm message, this water alarm switches on connected devices, such as Water pump or washing machine, immediately after contact with water optionally on or off. This avoids greater water damage in most cases. In addition, this smart water alarm with WiFi connection alerts you on your smartphone phone when you are not at home. By informing your phone, you can react quickly and avoid major damage.
Precise water sensor with real-time monitoring - The water sensor reliably detects leaks and floods, ideal for basements, household appliances and hard-to-reach areas. By informing your mobile phone, you can react quickly and avoid major damage, even if you e.g. outside your apartment/house or are on holiday. Also ideal for weekend homes.
Long-lasting operational readiness - simply plug directly into the socket. Continuous monitoring without changing batteries. Perfect for long-term monitoring. The switching capacity is 16A, 3600 watts. Alarm sound volume adjustable to 3 levels (max. Alarm sound: 85 dB / 3 m) indicator lights for power connection, alarm message and status display of the device socket (on/off).
EASY INSTALLATION & INTUITIVE APP CONTROL The 6.6ft long and compact water sensor allows precise placement. Ideal for hard-to-reach areas such as behind cabinets, in the basement, under the washing machine or in the pump shaft.

58,72 €
06

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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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.

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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 €
07

erdiegle

Erdiegle Water Detector Water Alarm, 135 dB Water Sensor Alarm Water Alarm Flood Detector for Basements, Bathrooms, Laundry Rooms, Kitchens, Garages and Attics (6F22/9V Batteries Included) (1 Pack)

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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.

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Main highlights

Long battery life: the water leak sensor is powered by a 6F22/9V battery, can work for about 2 years in sleep mode, 5 hours alarm time in sleep mode, will provide continuous and reliable protection against water leaks.
Easy installation: no tools required, no hub required, so that the water sensor can be easily set up in your home.
24/7 peace of mind: the water alarm is a must for homeowners, provides peace of mind and great protection for any room with water leaks, such as near sump pumps, pipes, aquarium, water heaters, washing machine or under sinks.
2 mounting modes: our water leak alarm offers two mounting modes - floor mounting and wall mounting - which offers you flexibility in placement.
135 dB sound: when the water detector is triggered, it makes a 135 dB loud buzzer, which ensures that you never miss a water leak.

13,99 €
08

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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8.7

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

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.

17,40 €
09

Schabus

Electrical Engineering – Bus Water Detector Sht 240 Plug (Pack of 1, 300240

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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

Plug and play – simply plug into a socket, place the sensor – the device is ready to use. Flexible expandable – sensor cable can be extended up to 50 m length (2 × 0.14 mm² cross section). Robust LIYY cable – short-term waterproof, self-extinguishing, flame retardant and resistant to oils, coolants, lubricants
Perfect for indoor rooms with a risk of moisture – ideal for basements, technical rooms, laundry rooms – but not suitable for constantly humid environments or liquids such as oil/diesel (this is recommended for example the SHT 241 from Schabus)
Immediately safe – detection of floor moisture in the basement, laundry room or boiler room; with fork sensor with 2.8 m cable length. Instant safe – detection of floor moisture in the basement, laundry room or boiler room; with fork sensor with 2.8 m cable length. Automatic reset – alarm goes off and LED changes back to green as soon as sensor is dry – without manual intervention

47,91 €