Water alarm deals(Disclaimer)
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🏅 108 water alarms in price comparison
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💶 Current offers and discounts
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🕝 Last updated on 14.10.2026
15% discount
X-Sense Wi-Fi Water Leak Detector Kit, 1700 ft Transmission Range, SWS54 | Suitable for Kitchens, Basements, Bathrooms, 3 Water Detectors & 1 Base Station
Real-Time Notifications: When a water leak is detected, a push alert will be sent to your phone, so you’ll be alerted quickly even while you are not at home; you can share the device with your family members so they can also check the device status anytime, anywhere High Sensitivity: This water leak detector is equipped with 2 top sensor probes and 4 bottom sensor probes to detect water leaks and floods; detects a minimum water level of 0.015 in (0.3 mm), providing an early warning of water damage with the LED flashing red Know from Anywhere: Once triggered, the water leak sensor and base station will sound simultaneously at a volume of up to 110 dB – loud enough for everybody to hear; simply mute the alarm via the app or push the silence button on the base station or water leak sensor Unwired and Sleek Design: No wiring or setup required.
£ 40.56
£ 47.72
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SEBSON Water Alarm Mini 10 Year Long Term Lithium Battery | Small Water Detector 60x60x24.2mm, Leak Sensor with Lithium Battery, Set of 3
Water detector GS153 with permanently installed 10 year lithium long-term battery.
£ 41.99
free delivery
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Tapo T300 Smart Water Leak Detector, Water Leak Sensor, Drip Leak Alert, Instant Notifications, 90dB Alarm, Waterproof, Hub Required,Battery Included,Flexible Placement,Visible Alarm with Tapo Lights
Drip & Leak Alert - Responds to drips and leaks with 6 detection probes on both top and bottom.
£ 17.99
free delivery
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SEBSON Water Alarm Mini 10 Year Long Term Lithium Battery | Small Water Detector 60x60x24.2mm, Leak Sensor with Lithium Battery
Water detector GS153 with permanently installed 10 year lithium long-term battery.
£ 17.99
free delivery
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SwitchBot WiFi Water Leak Detector, Water Sensor with 1m Sensor Cable | 100dB Water Alarm, App & Email Alerts, IP67 waterproof, no hub, detects leaks/drips/water level, 2.4GHz, battery 2 years
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.
£ 19.99
free delivery
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WER Water Leak Alarm Sensor, Battery-Operated 90dB Detector for Basements, Bathrooms, Laundry Rooms, Kitchens, Garages, and Office Areas (Shipped Without Battery, 4 Pack)
ANYWHERE LEAKS HAPPEN: Only 100gram water alarm leak detector with 3.15in diameter and 1.18in height which is easily placed anywhere you want, suitable for the sink cabinet, sump pump, washing machine, bathrooms, basements, wine cellar, kitchen and water heater.
£ 23.97
free delivery
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SEBSON Water Alarm Mini 10 Year Long Term Lithium Battery | Small Water Detector 60x60x24.2mm, Leak Sensor with Lithium Battery, Set of 2
Water detector GS153 with permanently installed 10 year lithium long-term battery.
£ 29.99
free delivery
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SwitchBot WiFi Water Leak Detector, Water Sensor, No Hub, App/Email Alerts | 100dB Water Alarm, IP67 waterproof, detects 0.5mm leaks, drips & water level, 2.4GHz, no hub, battery up to 2 years
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.
£ 16.99
free delivery
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WER Water Leak Alarm Sensor, Battery Operated Leak Alert, 90dB Water Detector for Basements, Bathrooms, Laundry Rooms, Kitchens, Garages and All Office Areas (Shipped Without Battery, 2 Pack)
ANYWHERE LEAKS HAPPEN: Only 100gram water alarm leak detector with 3.15in diameter and 1.18in height which is easily placed anywhere you want, suitable for the sink cabinet, sump pump, washing machine, bathrooms, basements, wine cellar, kitchen and water heater.
£ 14.57
free delivery
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Water Leak Detector - Flood Water Level Sensor Detectors - Bath Alarm Overflow Sensor - Rain or Moisture Indicator
BE PREPARED FOR A FLOOD RISK EMERGENCY with our water detector.
£ 16.99
free delivery
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FireAngel FA7011 Water Leak Sensor - Water Leak Detector - Flood Water Sensor Alarm for Kitchen, Bathroom, Basement, Laundry Room - White
LEAK SENSOR: The FireAngel FA7011 Water Leak Sensor detects water leaks and alerts the user to potential water damage.
£ 14.99
free delivery
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32% discount
Ring Alarm Pack - S by Amazon | Smart home alarm security system with optional Assisted Monitoring - No long-term commitments | Works with Alexa
This Alarm Pack is ideal for apartments and 1 bedroom homes.
£ 149.99
£ 219.99
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Water Leak Detector with built in Auto Shut Off
Why worry about water escape, when a simple leak detector can prevent the problem?
£ 42.50
free delivery
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Mengshen WiFi Water Leak & Water Level Detector, 2-In-1 Tuya Smart Sensor Alarm Loud Volume APP Alert Monitoring with 6.5 Feet Detection Line for Swimming Pool Fish Tank Aquarium
【Dual Sensor Water Alarm】2 in 1, including water leak probe and water level probe. It can not only detect water leaks, but also detect the water level, telling you when water is full or low.
£ 17.99
free delivery
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RUIKORING 5 Pack Water Leak Alarm Detector, 0-120dB Adjustable, IP67 | 5-Year Battery Life, Dual Probes Sensitive Leak and Drip Sensor Alarm, Home Kitchen, Basement, Sink, Laundry Flood Prevention
Compact & Portable Design: Our 5-pack water sensor alarm leak detector works independently no-needing Wi-Fi, Bluetooth, or a cellular connection. Its compact, portable design blends into your home decor seamlessly. Simply place it in areas prone to leaks, like the bathroom, kitchen, or basement.
£ 36.46
free delivery
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17% discount
SimpliSafe Water Sensor - Smart Home Leak Detector & Alarm - Compatible with SimpliSafe Home Security System
UPGRADE YOUR SIMPLISAFE SYSTEM: Compatible with your SimpliSafe home security system (3rd Gen).
£ 19.99
£ 23.99
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Briidea Sump Pump Alarm, Indoor/Outdoor High Water Septic Tank Alarm with 110dB Loud Alarm and Large LED Indicator, 10ft Level Float Switch, Ideal for Septic Sump Pump Pond Water Tank
HIGH WATER SEPTIC ALARM: Basement flooding can cost you a lot of time, effort and money.
£ 61.63
free delivery
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GoveeLife Smart Water Leak Detector 2 with 1968ft Ultra-Long Range, 3 Pack | WiFi Water Sensor with SMS/Email/APP Push and Sound Alarm, 5-Year Battery Life, IP66, Suitable for Home, Basement, Kitchen
SMS, APP & Email Real-time Alerts: Connect the gateway to Wi-Fi, and it will instantly send SMS, APP, and email notifications and alerts to your phone when a water leak occurs, even if you're not at home, helping you locate the leak faster.
£ 82.99
free delivery
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Bosch Smart Home Water Alarm with app Function (Emergency Call Speed dial in the app, Slip-Proof, Slim and Compact)
The Bosch Smart Home Water Alarm alerts you right away if water is leaking by emitting a loud beeping noise Notifies immediately via push notification in a serious case, or also of unintended movements by pets or when cleaning Quick action thanks to the emergency call direct dial in the app The slip-proof silicone coating on the underside and the compact design allow it to be placed perfectly in corners/under the washing machine Maximum added value in the system: you need a Bosch Smart Home controller or Bosch Smart Home controller II to integrate the device into your Bosch Smart Home system Box contents: 1 x water alarm including 2x AAA batteries, 3x quick start guides
£ 35.99
free delivery
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Geevon Water Leak Detector, 100dB Water Sensor Alarm Flood Detector | White, 2 Packs, with batteries, suitable for basements, bathrooms, laundry rooms, kitchens, garages, and attics
LOUD 100DB WATER ALARMS FOR HOME: Each water leak detector features ultra-loud 100dB alarm audio which is loud enough to be heard throughout the house even if leak happens in the basement, garages, or wine cellar.
£ 14.19
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SEAFLO 12V High Water Level Alarm SystemQ
Consists of an electric field bilge switch and a 95 dB alarm Detects water and sends a signal (3 seconds delay) to the alarm Precision switch automatically activates and shuts off alarms when water reaches specific levels No moving parts, totally sealed solid state electronics and field detectors 3 second delay prevents false starts.Switch activates the Bilge Pump at a 41mm/1.6" fluid level and deactivates at a 9.5mm/0.37" fluid level
£ 43.39
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WiFi Water Leak Detector Alarm: Intelligent Water Sensor, 100 dB Low Water Level Sensor with Tuya APP Remote Monitoring, Wireless Tank Level Monitor for Basement, Kitchen, Bathroom (2PCS)
Real-time APP notifications: After connecting to Wi-Fi, you can receive real-time email and app notifications remotely when drops, leaks or floods are detected without the need to buy an additional hub.
£ 24.71
free delivery
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Yale AC-WS Sync Water Leak Sensor - Sync Alarm Accessory - 200m
SYNC ALARM ACCESSORY: This Water Leak Sensor is easy to pair with your Yale Sync Smart Home Alarm through the Yale Alarm App.
£ 26.04
free delivery
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Aqara Water Leak Sensor, REQUIRES AQARA HUB, Wireless Detector | Wireless Mini Flood Detector for Alarm System & Smart Home Automation, Water Sensor Alarm for Kitchen Bathroom Basement
NOTES: Aqara Hub is required and sold separately. Requires a secured 2. 4 gigahertz WiFi network connection.
£ 19.99
free delivery
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Smart Leak Sensors, YoLink 1/4 Mile World's Longest Range Wireless Smart Water Leak Sensor Compatible with Alexa and IFTTT Leak Detector with App Alerts and Remote Monitor, 4 Pack, YoLink Hub Included
Easy to install. Scan, Plug and Play.
£ 79.99
free delivery
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GoveeLife WiFi Water Ieak Detector 2 for Home, Smart Water Ieak Sensor 4 Pack with 100dB Adjustable Alarm and App Alerts, Wireless Detector with 1312 ft Transmission for Basement, Kitchen, Bathroom
SMS, APP & Email Real-time Alerts: Connect the gateway to Wi-Fi, and it will instantly send SMS, APP, and email notifications and alerts to your phone when a water leak occurs, even if you're not at home, helping you locate the leak faster.
£ 87.11
free delivery
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Sump Pump Alarm,Sekelo High Water Alarm with 10ft Level Float Switch,110dB Loud Alarm and High Brightness LED Indicator ,IP67 Indoor/Outdoor Use,Ideal for Septic Sump Pump Pond Water Tank
【Reliable Waterproof Design】: Safeguard your home and property from floods with our sewage pump alarm.
£ 50.86
free delivery
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14% discount
Eve Water Guard (Apple Home, Thread) - Smart Home Water Leak Detector
Avoid expensive water damage: Eve Water Guard detects water leaks and alerts you the moment they occur – acoustically and visually with a loud siren (100 dB), red flashing warning light, and notification sent to your iPhone, iPad or Apple Watch.
£ 89.99
£ 104.95
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High / Low Water Level Sensor Detector Alarm 120 dB Red Strobe Siren, Adjustable Alarm Volume, Sump Bobber Water leak Sensor,16.4ft Probe Cord, Suitable for Water Tank/Aquarium, Swimming Pool/Basement
【Dual 5 Meter Floating Probe Design】- It can detect water shortage or overflow.
£ 29.12
free delivery
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22% discount
NOUS E4 Water Detector, ZigBee Water Sensor, Smart Water Monitor, Smartthings, ZigBee Sensor, Water Alarm Detector, Compatible with TUYA, Smart Life, MQTT, ZigBee2MQTT, Home Assistant
Reliable Zigbee 3.0 Water Leak Detection: The NOUS E4 instantly detects leaks and moisture, helping you prevent water damage early.
£ 13.99
£ 17.99
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26% discount
X-Sense Smart Home Security System with App Alerts, Alexa Compatible, AS05 | Includes 1 Base Station, 2 Door Alarms, 1 Motion Alarm, 1 Keypad
Wireless Security Kit: AS05 home security system includes 2 door sensors, 1 motion sensor, 1 keypad, and 1 base station; closely monitors every door and window, providing unbeatable security for your home; suitable for bedrooms, apartments, rental properties, and any other areas that need extra protection App Remote Monitoring and Control: Easily monitor and manage your home's safety from the X-Sense app on your phone; you can set up Home, Away, and Disarm Modes with automatic schedules to ensure your home remains protected, even when you’re away Easy Arming and Disarming: Easily arm and disarm your home security system with the keypad or app; you can press the panic button on the keypad to trigger an alarm and get immediate help; supports multiple passwords and scheduling for extra safety and convenience Real-Time Alarm, Quick Response: When one sensor is triggered, the base station emits a loud 100 dB alarm and sends an alert to your phone, keeping you and those nearby informed and ready to react swiftly Minimalist Design, Easy Installation: This security kit can easily be installed without tools, using either the adhesive tape included, or screws for more permanent mounting; you can install it at key entry points, such as doors and windows; suitable for homes, apartments, dormitories, and offices
£ 51.82
£ 69.99
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Glentronics, Inc. BWD-HWA 00895001498 Basement Watchdog High Water Alarm, Pack of 1, Multi
Detects leaks before they cause costly water damage Detects moisture before mold can grow Up to 5 years of protection on one 9V alkaline battery* No installation needed, simply place on the floor near potential water source Sensor wire extends 6' and can be lengthened for hard to reach areas.Detects as little as 1/32" of water.Alarm sounds for up to 3 days.Inexpensive safeguard where water or moisture may collect.5 year.*Depends on shelf life of the battery (not included)
£ 25.44
free delivery
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5 Pack Water Leak Detector, Adjustable 0-100 dB Loudly Wet Moisture Floor Water Alarm Leak Sensor, Sink Overflow Pipe Drip Alter for Home/Kitchen/Basement/Bathroom (Battery Included)
Leaking & Dripping: 2 water sensitive probes on the front for monitoring pipe/drain drip and 4 rear probes for detection water leak & floor moisture/flood.
£ 37.82
free delivery
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Water Leak Detector, YoLink 1/4 Mile World's Longest Range Wireless Smart Water Leak Sensor, Hub Required
Why Worry About WiFi? YoLink devices communicate by LoRa, an industrial-grade protocol that provides up to 1⁄4 mile open air range. Devices do NOT connect to your network or even to the internet; they communicate with the Hub. Strong signal level, obstruction penetration, no (WiFi) holes in your internet security, and fully-encrypted communications provide more than most ask for from their smart home system! ⏱ Set it & Forget it! Installs in seconds! The YoLink wireless Water Sensor could not be easier to install; just place near or under the equipment you wish to monitor. Suggested uses are near or under, toilets, water heaters, laundry machines, dishwashers, sinks, fish tanks, in or near sump pumps, and by any other location subject to water leaks and flooding.
£ 19.19
free delivery
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12% discount
NOUS E13 ZigBee Water Sensor for Leakage or Lack of Water, 80 dB Alarm, App Notification, IP66, Battery Operated (2 x AAA), Compatible with Alexa, Google Home, ZigBee Hub Required
Precise detection of water leaks or water deficiency: the NOUS E13 sensor reacts reliably to water leaks or too low a water level.
£ 22.15
£ 25.26
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eufy Security Water and Freeze Sensor with Remote Alerts, IP65 Waterproof, 2-Year Battery Life, HomeBase Required, Compatible with HomeBase S380 and S280, App Control
Instant Notifications*: Protect your home from leaks, water damage, and damage from freezing temperatures.
£ 25.99
free delivery
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SimpliSafe Home Security System | 13 Piece Home Security Camera & Alarm System with Entry Sensor, Motion Detector & Outdoor Siren - Optional Monitoring Subscription - Compatible with Alexa
WIRELESS HOME SECURITY SYSTEMS 13 PIECE: Ideal for your house or flat.
£ 309.99
free delivery
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Water Detector, Underground Pipe Locator | 3.7V lithium battery detection kit, dual probe, 20000X audio for plumbing repair
Advanced Detection Technology: This water leak detector utilizes state-of-the-art Japanese components to enhance penetration and sound quality.
£ 37.03
free delivery
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Heiman Water Leak Detector with Battery, Wifi Smart Water Detector Sensor App Alerts, 10 Years Sensor, IP67 Waterproof, 75 dB WiFi 2.4 GHz for Kitchen, Basement, Cellar and Bathroom, WS2WL, 1 Pack
HEIMAN
£ 18.99
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Septic Pump Alarm, Zuomeng High Water Alarm for Sump Pump with Bright Flashing Light, 110 dB Alarm, External Submersible Pump Connection, IP67 Casing
FLOOD PROTECTION: This product uses a float switch to monitor the water level in sump pits or septic tanks.
£ 68.50
free delivery
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9% discount
Underground Water Leak Detector, 4 Gear Professional Ultrasonic Water Leak Sensor, Floor Heating Gas Water Pipe Leak Detector for Indoor and Outdoor Leak Detection
【FINE WORKMANSHIP】This professional leak detector has fine workmanship and is a sophisticated professional instrument that can accurately and efficiently detect leaks.
£ 194.81
£ 213.14
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Meross Smart Water Detector | Water Leak Sensor WLAN IP66 | Up to 100 dB Sensor & App & Hub Alarm | Smart Water Alarm Detector for Kitchen, Bathroom, Basement | Hub Required | Battery for 3 Years |
Smart water leak sensor with high sensitivity and quality: this WiFi water leak detector has highly sensitive and reliable sensor elements on both the top and bottom to detect water leaks and floods.
£ 16.81
free delivery
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SimpliSafe Home Security System | 8 Piece Home Alarm System with Entry & Motion Sensors, Bellbox & HD Indoor Security Camera - Optional Professional Monitoring - Compatible with Alexa
WIRELESS HOME SECURITY SYSTEMS 8 PIECE: Ideal for your small house or flat. Includes Base Station, Keypad, 1080p SimpliCam, 2 Entry Sensors, 2 Motion Sensor & Bellbox. Want to customise with additional detectors?
£ 249.99
free delivery
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Sump Pump Alarm,Sekelo High Water Alarm with 10ft Level Float Switch,90dB Loud Alarm and Power ON/Off LED Indicator ,IP67 Indoor/Outdoor Use,Ideal for Septic Sump Pump Pond Water Tank
【Reliable Waterproof Design】: Safeguard your home and property from floods with our sewage pump alarm.
£ 70.22
free delivery
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ECOWITT Sensor WH55, Wireless Multi-channel Water Leak Detection Sensor with Loud Audio Alarm, Just A Accessory Cannot Be Used Alone
▲Water Leak Detector: This water alarm sensor detects water seepage every 3 seconds and emits loud alarm with 90dB once triggered ▲Live Data on APP: requires a GW1000 WIFI gateway(sold separately) to connect to WiFi, after the WIFI configuration,you can monitor the water leak condition on the Live Data page of the WS View app (requires the gateway and your phone is using the same Wi-Fi network) ▲Remote Monitoring: supported to upload to our free Ecowitt Weather server(ecowitt.net) to view the current water leak condition ▲Email Alerts: Receive email alerts from the Ecowitt Weather Server for the ; Remote monitoring with smart phone, laptop, or computer by visiting the website ▲Battery power level display on the WS View App & battery alert function on the Ecowitt Weather Server ; High or low sensor sensitivity selectable to meet different requirements.
£ 22.63
free delivery
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15% discount
X-Sense Wi-Fi Water Leak Detector with App Alerts, SWS0A, 1-Pack | SBS50 Base Station Required, SWS0A, IP67 Waterproof, Wireless Detector for Kitchen, Bathroom, Basement
Note: to use the app features, you must also have the SBS50 base station (not included) Never Miss a Leak: When a water leak is detected, a red light will flash on the water leak sensor and the base station will sound an alarm up to 100 dB; you’ll also get an app alert on your phone, so you can learn about leaks even if you’re away Feature-Rich App: Adjust the base station alarm volume, mute an alarm, and view your alarm history via the app; tap “Remind Me Later” to temporarily mute the alerts for 10 minutes, 30 minutes, 2 hours, 6 hours or 12 hours; test the device, get low battery alerts, and share the sensor all from the app Top and Bottom Sensors: Featuring 2 ultra-sensitive water probes on the top and 4 on the bottom, this water leak detector can sense water just 0.3 mm deep as well as drips from above, ensuring you're promptly alerted to any unexpected water without having to physically be there and check for yourself Ultra-Slim and Easy to Place: This water sensor alarm fits into tight and awkward spaces thanks to its compact design; the device is only 0.7 in (17 mm) thick and 3 in (77 mm) in diameter
£ 13.59
£ 15.99
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Sonin 00701 Water Alarm with Flat Sensor, Small, White
Flat sensor is weighted and designed to use on horizontal Detects water and sounds loud 85 dB alarm!
£ 27.58
free delivery
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Wi-Fi water Level/sump monitor Sensor with buzzer, email/text Alerts
Cloud enabled water level sensor. Get alerts. View live on cloud.
£ 93.80
free delivery
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LinkTap D1 2-Zone Smart Irrigation Timer & Gateway, 2 Built-in Flow Meters | Irrigation by Weather/Volume/Duration, Real-Time Fault Detection & Alerts, Anti-Freeze Protection, Long Battery Life, IP66
Dual-Zone Wireless Water Timer with Weather-Adaptive Control – Manage two independent watering zones with one device, replacing two G2S timers.
£ 189.00
free delivery
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OPPWONG Water Leak Alarm Detector, Dual Probes USB Underground Water Pipe Leak Listen Detector with Headphone, Ideal for Site Construction & Plumbing
Enhanced Leak Detection: The water leakage detector amplifies sounds to detect pipeline leaks effectively and allows for adjustable volume with earphones for precise detecting.
£ 28.66
free delivery
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Resideo RWD21 Reusable Water Leak Alarm,White
Unlimited use spot detector Economical way to defend against water leaks in multiple locations throughout the home Water sensor and alarm in one Audible alert when water is detected Detects water only 1/16" deep
£ 16.76
free delivery
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Flood Buzz Water Leak Alarm; Water Leak Detector for Homes and Businesses; Reusable with Factory Installed Battery - 6 Pack
PROTECT YOUR HOME, BUSINESS OR ASSET: The Flood Buzz water sensor alarm protects your home against damaging leaks with a loud alarm to warn of any flood or leak conditions so they will be fixed before they become much more costly problems. No more worrying about unknown leaks.
£ 44.45
free delivery
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Hoteam 5 Pcs Water Leak Detector 120dB Water Leak Alarm 9V Battery Water Sensor Alarm Flood Sensor Water Detector Sensor Overflow Security Alert for Home Basement Kitchen Garage Bath Tub Sink White
Loud to Hear: the water leak alarm detector is 120dB, loud to make the people in the house hear the sound and check the water condition in time, effectively avoids overflow and prevents your house from being flooded Wide Applications: water leak detectors for home are in suitable size, widely applied in places where water may leak, you can easily place the water leak detector near the bathroom, kitchen, basement, garage, etc., avoiding the flood or water leakage problem in time 9V Battery Work (excluded): the water leak sensor is battery operated, it is recommended to use alkaline battery; The normal battery can last for about 12 months, inferior battery about 6 months, the battery life will be shorter if being applied at high frequency Useful for Most: the water detector sensor is useful and needed for those places where the terrain is relatively low and there is more rain, people with poor memory also need the alarm to remind them of the water condition Easy to Use: put the water detector alarm near the leaking place, and when there is no water, the product will not give an alarm; When the water soaks the sensor, it will alarm, is convenient and easy to use
£ 23.36
free delivery
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CallToU Personal Alarms for Elderly WiFi, Waterproof Elderly Alarm Call Button with Instant Family APP Alerts, Multiple Caregiver Sharing, only Supports 2.4GHz WiFi
CallToU
£ 45.59
free delivery
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Water Leak Detector, Automatic Water Leak Alarm System, with 2X 3/4" NPT Shutoff Valves & 2 Sensors, Flood Prevention for Water Heater Laundry
Automatic shut-off valve when the sensor detects any leak and the controller sounds alarm Brass valve 3/4" NPT Support 8 sensors (2 sensors included) 7/24 security, highly reliable Easy to install
£ 112.79
free delivery
To the offer
10% discount
Smart Water Leak Detector: Zigbee Water Leak Sensor with App Alerts, Requires Zigbee Hub, Water Sensor Alarm for Home, Compatible with Apple HomeKit, Alexa and Home Assistant(1Pack)
A Zigbee hub is required & More Smart Assistant Supported: Compatible with most Zigbee hubs like SmartThings and Zigbee Home Assistant (requires Z2M), ensuring stable connectivity and functionality.
£ 18.99
£ 20.99
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aquaHALT Smart Home Water Toilet Leak Detector Alarm and Automatic Shut Off Valve - Water Sensor Alarm Shut Off Tool - Easy Installation - Battery Operated - Protect Your Home from Water Damage
AUTOMATIC SHUT OFF - When abnormal levels of moisture or water are detected, aquaHALT automatically shuts down the water flow and sends you an alert.
£ 134.57
free delivery
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SABRE Wireless Water Leak Flood Alarm Sensor with 110 dB Siren - DIY EASY Installation
ATTENTION-GRABBING – 110 dB alarm helps wake/alert homeowner that a leak has been detected (audible up to 600 feet/185M away)
£ 34.79
free delivery
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GSM Alarm System GA01P GSM Mini Smart Remote Power Failure Alert Sms Call Alarm Security Power Failure
Alert System: The 1-Channel GSM Power Failure Alarm is designed to keep you informed anytime, anywhere.
£ 31.65
free delivery
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Pool Alarm with Remote Receiver, Pool Underwater Drown Monitor System, Battery Powered Poolside Alarms for Inground&Above Ground Pools, Kids Child Pets Swimming Pool Safety Guard fits up to 16x32sq.ft
2 INSTALLION METHOD: Our pool alarm offer dual installation options: 1) Permanent screw mount (drilling required) for concrete/above-ground pools, or 2) Tool-free 3M adhesive tape for smooth surfaces - no drilling needed.
£ 110.82
£ 115.16
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Sump Pump Alarm, High Water Leak Detection, 5FT Probe Cable | 110dB Loud Alarm, LED Indicator, Adjustable Volume, One-Touch Mute, for Indoor/Outdoor Systems in Basements, Septic Tanks
【Safe and Reliable】: The sump pump alarm activates a loud alarm whenever high water levels are detected, alerting you to protect your home and property from flooding.
£ 42.07
free delivery
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U.S. Solid Water Leak Detector with Auto Shut-Off Valve & Sound Alarm, 1/2" NSF Certified 304SS Motorized Ball Valve with 3 Sensors, Smart Sensor System for Water Heaters, Laundry & Flood Prevention
[AUTOMATIC SHUT-OFF PROTECTION] Instantly detects leaks and automatically closes the motorized ball valve to prevent flood damage.
£ 92.44
free delivery
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Resideo WiFi Water Leak Detector for Home, Smart Water Sensor Alarm and Freeze Detector, Water Detector Alarm for Basement, Bathroom, and Under Sink
WiFi water leak sensor - When you're away, you can depend on the L1 WiFi water alarm leak detector to monitor temperatures and warn you of leaks.
£ 63.55
free delivery
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5 Pack Water Leak Detectors for Home, 100 dB Water Sensor Alarm Leak Detector for Basement, Bathroom, Kitchen, Home
Leaking & Dripping: The water alarm leak detector is designed with 2 rear water leak detection probes and 2 front dripping probes. Any of the two sets of probes will sound an alarm when it encounters water. Prevent water waste and deal with water leaks in a timely manner with our precise and comprehensive water sensor probe system
£ 33.66
free delivery
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Liquid Level Meter, Oil Tank Level Monitor, Ultrasonic Water Tank Liquid Depth Water Level Sensor Transmitter with Temperature Display, with 3.3 Inch LCD Display
Cosiki
£ 55.16
free delivery
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Water Pipe Leak Detector, Professional Underground Pipes Water Leak Alarm Detector for Construction Site
Dual Detectors --- Design switch, dual detectors, including probes and probes needle, the volume can be adjusted according to the situation.
£ 32.89
free delivery
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hotun Detect In Tundish Water Detection, Temperature Sensing, Audible and Visual Alarm System.
Hotun
£ 24.23
free delivery
To the offer
5% discount
Water Leakage Alarmer, Water Level Wireless Sensor Wifi Overflow Flood Detector, for Google Home,Alexa,TUYA/Smart Life APP Notification
【Wireless Sensor Leakage Alarmer】Detect leaks in an instant with this wireless water sensor leak detector.
£ 15.49
£ 16.29
To the offer
Water Leak Detector -Ourjob Water Alarm Surveillance Systems Water Detectors for Home Security, Kitchen，Bathroom, Basement (3PCS)
Sound and light alarm -- When there’s a water leaking in some places like kitchen, bathroom..., the water sensor can detect water, and immediately prompt with real-time sound and light alarmto notify you.
£ 23.99
free delivery
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Oumefar Ultrasonic Water Tank Liquid Depth Level Meter Sensor High/Low Alarm Empty Alert Ultrasonic Level Sensor with Indoor Tank Temperature Display
【 10-ELEMENT LCD BAR GRAPH 】 : This meter monitors tank liquid depth level, and displays on a 10-element LCD bar graph. You can keep an eye on your outdoor water tank from the comfort of your own living room, up to 100m away
£ 51.69
free delivery
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Double Liquid Level Detection Sensor Module Infrared Type Liquid Level Water Level Alarm Control (New Version), Electronic Component
【TWO DETECTION PROBES】This is a infrared dual-level water sensor module with two detection probes. 【FULL-SEALED&WATER PROOF】Sensor probes adopt full-sealed waterproof design. 【RELAY SWITCH OUTPUT】Output mode is relay switch output, withstand current is 30A. 【WELL FUNCTION】When liquid level state indicators (D3, D4) light on at the same time, relay status indicator (D1) lights on and relay start to work.
£ 30.01
free delivery
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PETSTIBLE Water Alarm Sensor WiFi Water Leak Detector For Tuya WiFi Smart Water Leak Sensor Detectors Flood Leak Level Overflow Alarm
【Real-time Detection】This water immersion sensor can detect water leakage in the environment in real time. When water immersion is detected, the detector will send an alarm signal to the host and report the information to the user's mobile phone.
£ 18.19
free delivery
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12V DC Wired Water Detectors Water Leak Alarm Module Leakage Flood Sensor with 10A NC NO Relay Output Control, Turns Off Flood Source (White)
DC10 to 15V Water Detector, great for security system or standalone water monitoring system NC/NO Relay Output, Max. Load 260V 10A. Free for big siren or other devices, such as shut off valve, As soon as the sensor detects water, it sound an alarm and stop your home’s water supply.
£ 23.14
free delivery
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Shelly Flood Gen4 - Smart Wi-Fi & Matter Water Detection Sensor + Leak Sensor Cable, IP44, Flood and Rain Detector, 3 Alarm Modes, Home Security, No Hub Required, Timer, Alexa & Google, Apple HomeKit
Smart Flood Sensor: Detects leaks, spills, or rainwater intrusion and includes an innovative leak-sensory cable covering up to 2 meters; ideal for basements, kitchens, laundry rooms, and under appliances Battery-Powered & Weather-Resistant Design: Includes long-lasting AA batteries and IP44 protection for reliable use in damp or hard-to-reach areas Battery-Powered & Weather-Resistant Design: Includes long-lasting AA batteries and IP44 protection for reliable use in damp or hard-to-reach areas Wi-Fi Operated + Quick Setup: Uses 2.4 GHz Wi-Fi for seamless smart home control; Bluetooth & Zigbee included for simplified connection Smart Control & Scheduling: Use the Shelly Smart Control app, Home Assistant or voice assistants like Alexa, Google Home, Apple HomeKit or SmartThings to set timers, create scenes, and automate your home - no hub required
£ 28.37
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SwitchBot 3-Pack WiFi Water Leak Detector, Water Sensor with 1m Cable | 100dB Water Alarm, App & Email Alerts, IP67 waterproof, no hub, detects leaks/drips/water level, 2.4GHz, battery 2 years
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.
£ 47.59
free delivery
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frient Water Leak Detector - Zigbee Wireless Flood Alarm & Sensor | Battery-powered Smart Home sensor with loud alarm. Works with SmartThings, Homey, and Home Assistant. Built-in temperature.
No more drip drip: This frient detects water fast and warns you before a small leak turns into a big mess.
£ 27.60
free delivery
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Ultrasonic Liquid Level Gauge, Water Tank 0-15M Depth Meter Wireless Liquid Level Tem Sensor Transmitter+Reciever, Remote Monitor for Water Tank With Alarm
【Practical Wireless Liquid Level Tester】Liquid level meter monitors tank liquid depth level, and displays on a 10-element LCD bar graph, it's a practical wireless liquid level tester. Suitable for all non-corrosive liquid, Transmission Range:100m(300 feet)in open area.
£ 46.59
free delivery
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Minder Weatherproof Wireless Gate Door Alarm with Code or Remote Entry - Alarm and disarm with a 4 digit pin or remote control - Completely wireless!
This alarm can be activated and deactivated via a remote control or a 4-digit pin code.
£ 23.99
free delivery
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Smart Water Leakage Detector, For Tuya For ZigBee Real-time Wireless Water Leak Sensor, Water Sensor Alarm For Kitchen Bathroom Basement
【Wireless and Portable】No need for cables, this smart water leak detector can be placed anywhere you desire, offering convenience and flexibility.
£ 13.99
free delivery
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Hoteam 10 Pcs Water Leak Detector 120dB Water Leak Alarm 9V Battery Water Sensor Alarm Flood Sensor Water Detector Sensor Overflow Security Alert for Home Basement Kitchen Garage Bath Tub Sink White
Loud to Hear: the water leak alarm detector is 120dB, loud to make the people in the house hear the sound and check the water condition in time, effectively avoids overflow and prevents your house from being flooded
£ 37.42
free delivery
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Driveway Alarm System-1/2Mile Long Range Motion Sensor-1 Receiver+1 Sensor | Wireless Outdoor Weather Resistant Motion Sensor&Detector-DIY Security Alert-Monitor&Protect Outdoor/Indoor Property
WIDE RANGE OF APPLICATIONS : The wireless weather resistant motion sensor can be used to monitor&protect your outdoor/indoor property. Such as driveway, front porch, gate,pool,garage,shed and etc. Great for home, business,and office.The sensor will work properly at all the seasons. Working temperature range from -30 to 150 degree Fahrenheit. 1/2
£ 39.99
free delivery
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YoLink Water Leak Sensor 2, 1/4 Mile World's Longest Range Smart Home Water Leak Sensor, Water Leak Detector with Built-in Siren Up to 105dB, Compatible with Alexa and IFTTT - YoLink Hub Required
Smart Water Leak Detector: Monitor critical locations at risk of flooding, and be informed immediately of the presence of water, preventing costly repairs; Smart Water Level Monitoring: The sensor may be configured for water level monitoring – be informed when water is no longer present or when water levels recede.
£ 43.60
free delivery
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KERUI Wireless Security Burglar Door Alarm System Kit for Garage Shed House Hotel Shop Apartment, Weatherproof Siren Horn with Remote Control Door Contact Sensor,Motion Sensor,Loud Up to 115db
Door alarm uses remote controls to set security code for arming/disarming; home security system complete with fully programmed main unit and sensors, later if you want to DIY, please factory reset first according to manual, then pair them again or search operation video on YouTube "KERUI Standalone Alarm System Operation Guide" for reference.
£ 29.99
free delivery
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Zircon Z621431 Leak Alert Water Leak Detector & Flood Sensor Alarm/ Water Leak Sensor with Dual Leak Alarms 90Db Audio/ Battery Powered, Batteries Not Included, White
Prevents serious water damage to your home Loud alarm (95 dB) sounds with direct water contact Alarm signals for up to 72 hours Fully automatic operation--no wiring required Low battery indicator for optimum safety and performance Floats in flooded conditions
£ 23.99
free delivery
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WiFi Water Leak with Water Level 2 In 1 Detector, Smart Water Sensor Alarms, Separate 5M Dual Detection Line, Left and Right Dual Alarms, Remote App Monitoring, AAA Battery Powered
Exclusive design and technical invention – the first 2-in-1 separate double probe structure that can meet the requirements of almost all scenarios for water leakage and water level detection.
£ 19.99
free delivery
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Savant Salt Level Detector for Water Softener, Real-time Monitor, Easy Installation, No Tool Needed, Low Salt Level Alarm, for Tank, Pool, and Other Home Appliances, SD-559
NO TOOLS REQUIRED: Simply place magnets on the top and bottom sides of the cover for a secure and mess-free installation.
£ 29.62
£ 30.75
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WiFi Water Ieak Detector: Smart Water Ieak Sensor with 80dB Alarm and App Alerts, Wireless Water Sensor with App Remote Control, Water Alarm for Home, Laundry, Kitchen, Basement
LOUND ALARM & APP REAL-TIME ALERTS: Connecting with 2.4GHz WiFi(No 5G support), you can remotely monitor the smart water sensor. When a water leak occurs, it will alert you with a sound of 80 dB for 60 seconds. At the same time, Alert will be sent to your phone. The historical record of each water leak can be seen on the App, Help monitor your house when you're away from home
£ 25.99
free delivery
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Water Leak Alarm, Water Leak Sensor Detector System Alarm, Waterproof Water Leakage Alarm Detector for Families/ Farms/ Shops ( Battery Not Included)
Sonew
£ 17.29
free delivery
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Mengshen Water Leakage Alarm 4 Pack, Leak Sensor Detector 100 dB Loud Sensitive Home Flood Drip Alert for Kitchen Bathroom Basement Laundry Room Garage Battery-Operated
【Loud Water Alarm】Water leak detector features ultra-loud 100dB alarm audio, which is loud enough to be heard throughout the house, you can clearly know where the leak occurred and deal with it in time.
£ 26.99
free delivery
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Water Alarm Sensor, WiFi Water Leak Detector, Overflow Flood Leakage Alerts, Remote Monitoring Leaker for Water Heater Basement Sewage Pump, TUYA/Smart Life APP Notification
ConBlom
£ 16.99
free delivery
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Water Leakage Detector, Water Pipe Leakage Monitor, High Sensitivity Water Pipe Leak Sensor, for Underground Water Leakage Site Construction Car Maintenance
AMPLIFIED SOUND: The water pipe leakage detector detects pipe leaks by amplifying the sound, and the sound level can be adjusted by using headphones
£ 34.23
free delivery
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Mengshen 2 Pack Water Leak Detector, Water Sensor Flood Alarm 120dB Wireless Waterproof Loud Audio Light Alerts Battery-Operated for Home Apartment Kitchen Bathroom Basement
Mengshen
£ 19.99
free delivery
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AzdBvae 120dB High Low Water Level Sensor Alarm Strobe Siren 16.4ft Cord | Adjustable Alarm Volume, Sump Bobber Water leak Sensor, Suitable for Water Tank/Aquarium, Swimming Pool/Basement
【High and Low Dual Probe Sensoe Design】- It can detect water shortage(low level) or overflow(hige level).
£ 26.99
£ 28.13
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DIYEAH 2pcs Water Leakage Detection Alarm with Loud Water Leak Alarm Featuring Longterm Reliability and Versatile Installation for Bathroom and Kitchen Use Compatible with Zigbee
Durable abs material: made from sturdy abs material, this water alarm is built to last, offering longterm reliability and resistance to damage,home leak detection system,flood detection for basements
£ 18.09
free delivery
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Water Leak Detector(Pack of 1), Lound Sound Alarm, Home Water Flooding Monitor Sink Overflow Monitoring Wet Moisture Alert Pipe Leakage Drip Detection Warning for Basement
LOUD ALARM: Each Water Alert Leak Detector features an extra-loud alarm tone that sounds as soon as water is detected, alerting you to a leak and preventing flooding, even if the leak is in a basement, garage or wine cellar.
£ 14.70
free delivery
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WiFi Water Leak Detector Alarm: Intelligent Water Sensor, 100 dB Low Water Level Sensor with Tuya APP Remote Monitoring, Wireless Tank Level Monitor for Basement, Kitchen, Bathroom (1PCS)
Real-time APP notifications: After connecting to Wi-Fi, you can receive real-time email and app notifications remotely when drops, leaks or floods are detected without the need to buy an additional hub.
£ 18.99
free delivery
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Chatthen Water Detector, Wireless Water Leak Sensor, 80 dB and 100 m Range, Support for RF433MHz Home Alarm System, Water Detector for Kitchen, Bathroom, Basement (Battery Included)
Chatthen
£ 14.70
free delivery
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SwitchBot 3-Pack WiFi Water Leak Detector, Water Sensor, App/Email Alerts | 100dB Water Alarm, IP67 waterproof, detects 0.5mm leaks, drips & water level, 2.4GHz, no hub, battery up to 2 years
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.
£ 39.99
free delivery
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Geevon Water Leak Detector, 100dB Water Sensor Alarm Flood Detector | White, 6 Packs, with batteries, suitable for Basements, Bathrooms, Laundry Rooms, Kitchens, Garages, and Attics
LOUD 100DB WATER ALARMS FOR HOME: Each water leak detector features ultra-loud 100dB alarm audio which is loud enough to be heard throughout the house even if leak happens in the basement, garages, or wine cellar.
£ 31.99
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Lifeswonderful - Cup & Mug Pouring Level Detector, Vibrator & Beeper for Hot or Cold Drinks - Liquid Kettle Pouring Assistance for The Visually Impaired
Cup/drink pouring level assistant, ideal for the visually impaired, helping to prevent spills and accidents This liquid detector hooks onto the rim of the glass or mug and sounds and vibrates when the cup is nearing full, changing tone when the level is completely full Please watch the demonstration video showing the detector in use Sliding pin sleeve allows adjustment of the liquid level at which the alert starts to sound Suitable for use with both hot and cold drinks, and features a magnetic back for storage on a fridge door Uses a replaceable CR2032 battery (included)
£ 15.99
free delivery
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Geevon Water Detector, 100 dB Water Leak Alarm Water Sensor Alarm | 10 packs, with a screwdriver,with batteries, battery operated, suitbale for basement, bathroom, laundry room
100 DB LOUD: each water alarm has a 100 decibel loud warning sound.
£ 39.99
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5% discount
Cuteefun Water Leak Detector WiFi, Low Water Level Alarm, 100dB Loud Water Alarm, Water Sensor with Remote Tuya/Smart Life App Monitoring, Wireless Water Detector for Kitchen, Bathroom, Basement
2-in-1 function: this device has the function of the water detector and the sensor water level. The default setting is the water detector mode, the two functions are easy to switch, this water alarm can meet your needs for different usage scenarios.
£ 21.08
£ 22.08
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Water Detectors Sensitive Leak and Drip Alert Water Alarm Sensor with 10A Relay for Automatic Water Shut-Off Valve or Pump (NO Included) (Black)
DC10 to 15V Water Detector, great for security system or standalone water monitoring system
£ 22.55
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Water Leak Detector Sensor Alarm: Home Water Flooding Monitor Smart Sink Overflow Monitoring Adjustable Wet Moisture Alert Pipe Leakage Drip Detection Warning for Basement Floor (3 Sensor)
Drip & Leak Alerts: Water leak detector alarm is designed with 4 rear water leakage detection probes and 2 front drip probes. There will have an alert when any of the three sets of probes were under the water.
£ 34.24
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Acmerota Water Leak Sensor, WiFi Smart Water Leak Detector, Drip Leak Alert Wireless Mini Flood Detector, Water Level monitoring, 100dB Alarm Water Sensor Alarm for Kitchen Bathroom Basement
ACMEROTA
£ 17.49
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Pipe Water Leak Detector, Water Leakage Detection Underground Water Pipe Leakage Monitor for Indoor and Outdoor High Sensor Water Pipe Leak Detector for Pipeline/Tire/Refrigeration Equipment
【Advanced Technology】The water leakage detector adopts new components and the most advanced technology in Japan, which increases the penetration force several times and greatly improves the sound quality.
£ 32.40
free delivery
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Geevon Water Leak Detector, 100dB Water Sensor Alarm Flood Detector | White, 10 Packs, with batteries, suitable for Basements, Bathrooms, Laundry Rooms, Kitchens, Garages, and Attics
LOUD 100DB WATER ALARMS FOR HOME: Each water leak detector features ultra-loud 100dB alarm audio which is loud enough to be heard throughout the house even if leak happens in the basement, garages, or wine cellar.
£ 39.99
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TECKNET Water Leak Detectors for Home, 120dB Water Sensor Alarm Leak Detector, IP66 Waterproof, Water Leak Detectors for Bathroom, Sink, Laundry, Window, Basements, Kitchens(1 Pack, Battery Included)
【Dripping and Leaking Alarm】Enhanced leak detector features 2 top water-sensitive probes for pipe/drain drip detection and 4 bottom probes for leak and floor moisture detection. All probes operate simultaneously, triggering timely alarms upon water contact.
£ 15.62
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We have found a total of 108 water alarms deals for you at amazon, ebay, ONBuy UK, and other shops. The most popular brands are: SwitchBot, Geevon, and X-Sense. Today's offer is X-Sense Wi-Fi Water Leak Detector Kit, 1700 ft Transmission Range, SWS54 | Suitable for Kitchens, Basements, Bathrooms, 3 Water Detectors & 1 Base Station with 15% discount. The lowest price we found in our deals is £ 13.59 . The highest price in our price comparison is £ 309.99 . Currently, we have selected 27 reliable shops for you to buy water alarms affordably.