10 Best Water Leak Detector of December 2025

• GET REAL-TIME ALERTS: Connect the gateway to WiFi, and it will instantly send emails, App notifications & alerts to your phone when water leakage occurs. Water sensors and gateway are paired right out of the box. Detects leakage even when you're not at home. NOTE: Doesn't support 5G WiFi
• LOUD ALARM WITH MUTE: If WiFi is not temporarily available for the gateway, our ultra-loud 100dB alarm will notify you. Loud enough to be heard even if leaks occur in your basement. Press the Mute button to silence the alarm when you find the leak. Sensor Battery Level Display is available in the App
• DRIP AND LEAK ALERTS: Water sensor comes with 2 groups of back water detector probes & 1 group of front probes for pipe dripping detection. Use the App to name each sensor with its location .eg. bathroom, basement, sink, water heater. Detect leaks from anywhere before they cause costly water damage
• CONNECTS TO MULTIPLE SENSORS: WiFi connection gateway has a stronger/more stable signal transmission & lets you connect with multiple sensors simultaneously (10 max.). Place the sensors in different areas in your house & rest assured that your home will be protected from water damage
• WATERPROOF DESIGN WITH MONEY BACK GUARANTEE: The completely sealed waterproof design allows for extended use in high moisture areas. Our water sensors come with a 30-day money-back guarantee, 1-year replacement warranty (NOT INCLUDING BATTERY REPLACEMENT), and lifetime customer support

Govee

• PROTECT YOUR HOME FROM WATER DAMAGE: Can be placed in the home wherever there is a risk for potential water damage, such as a flooding basement, washing machine leak, hot water tank failure, etc
• 24/7 PROTECTION: Smart technology helps detect leaks to help reduce the risk of water damage by providing 24/7 monitoring
• CONSTANT MONITORING: Monitors for water leaks and measures the room’s temperature and humidity to help protect against frost and mold risk
• REAL-TIME NOTIFICATIONS: Senses and sends real-time app notifications of water events that happen outside of the pipes – like a flooding basement or malfunctioning appliance
• WHOLE HOME PROTECTION: Offers ability to use and connect multiple detectors within the home for whole home protection; Available in single- or multi-packs, providing the opportunity to achieve home water management at any budget
• COMPATIBILITY: Use detector as a standalone monitoring device or connect it to the Flo by Moen Smart Water Shutoff (sold separately) for whole-home protection
• INCLUDES: Includes a detector extension cable with remote sensing disc that can extend up to 48 inches, making it perfect for reaching tight spaces; CR123A 3-volt lithium metal battery that lasts up to 2 years

Moen

• 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)
• Please Note: It Requires a 9-volt alkaline battery to operate but NOT included in this package ( Battery NOT included)
• Battery-saver feature only uses energy when the alarm is sounding for a long battery life
• Use to detect leaks before costly water damage is caused
• Detects as little as 1/32 -Inch of water to offer an effective early warning system
• Loud 110 dB alarm can be heard throughout the house

THE BASEMENT WATCHDOG

• Dripping and Leaking Alarm: Besides 2 groups of back water detectors probes, our product has one group front probe for water pipe dripping, simply place it in bathrooms, basements, kitchen, underneath sinks or by water heaters to detect water leaks before they cause costly water damage
• Wireless and Easy to Use: No wire or setup required, the mini size allow you to put it on any place that the dripping and leaking could happen. If you have purchased our Water Leak Detector kit, you can add it to the kit, then when you are not at home, you will also be able to monitor your home's leaks on your phone. Search "B07QP153GT" to find Water Leak Detector kit on Amazon
• Loud Alarm Audio: Each water leak detector features an ultra-loud 100 dB alarm audio. Loud enough to be heard even if leak happens in basement, press the button to mute the sound when you find the leaking place
• Low Battery Alert and Waterproof: The water sensor alarm will beep and flash red light when battery is low, or press the button on it to test the battery level, and the complete sealed waterproof structure ensure its long lifespan in moisture situation
• Your Purchase Protected： Govee provide 30 days money back guarantee & 1 year replacement warranty & life support guarantee unconditionally (Battery replacement not included). Purchase one to take care of you family and property without any risk

Govee

• World's Longest Wireless Range: Powered by LoRa technology, the long-range yet low-power system offers the industry’s longest receiving range in the market (1/4 mile). Our long-range coverage enables its use in areas challenging for most residential Wi-Fi systems, such as basements, outdoor porch/patio areas, sheds, free-standing garages, even remote outbuildings on your property.
• Easy and Effective Property Protection: 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 sump pumps, toilets, water heaters, laundry machines, dishwashers, sinks, fish tanks and any other location subject to water leaks and flooding.
• Early-Warning Notifications: Receive real-time early-warning notifications and protect your home and property from water damage. Notifications are in the form of smartphone banner alerts, SMS/text messages and emails, each optional and configured per your needs. Additionally, you may configure your system to activate a siren alarm and/or lights in your home.
• Low-Power Means Longer Battery Life: Because of the low power consumption, device batteries may last 5 years or more (depending on application and device usage/activity), on standard AAA Alkaline batteries (lithium batteries not required)!
• From Simple to Super-Smart: After setting up your notification preferences, keep it simple and let the YoLink system do the rest and monitor your home and property for you. Or, utilize available advanced automation features, including 3rd-party integration with Alexa and IFTTT, to interact with other YoLink and 3rd-party smart devices. Limited only by your imagination!

YoLink

• 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

Honeywell Home

• DETECT MOISTURE- Determine the moisture content of softwood, hardwood and other building materials (like drywall and masonry) or check water damaged areas to see if moisture is still present
• PROTECT WORK SURFACES - there are no pins on this tool, so your walls and projects can be saved from pinholes, scuffing and scratching to figure out their moisture levels
• VISUAL AND AUDIBLE ALERTS - if you’re looking for the source of a leak behind your work surfaces, listen for the high pitch tones to give you an accurate read on where moisture is most concentrated or quickly see using the tricolor LED moisture indicator
• DEEP READS - even without pins, this tool can read the moisture levels up to a 3/4 inch deep into the surface with an overall Measurement range of 0 to 53% for softwood, 0 to 35% for hardwood and relative readings for wallboard and masonry.Operating temperature: 32° to 122°F (0° to 50°C) @ <80% RH
• EASY TO READ AND USE- Auto-calibrating, 2-inch diagonal backlit LCD screen and a 3-color LED bar graph, HOLD button, auto power-off function, out of range alarm and low battery, 9V battery included
• FIRST STEP IN MOLD PREVENTION - by checking suspicious water stains with a moisture tester around the house, You can determine whether the area is wet (a perfect breeding ground for mold) or has long since dried

General Tools

• Loud (90dB) alarm sounds when even the slightest amount of moisture is detected
• In flood situations, the Leak Alert water detector is engineered to float and continue to sound the SOS alarm for up to 72 hours or until the battery is exhausted
• Fully automatic battery-powered operation - no wiring required for this leak sensor. Like your smoke and carbon monoxide detectors, a low battery warning chirps an alarm when it is time to replace the 9V battery
• Place in basements, bathrooms, kitchens, or wherever there is a potential for leaks. Common placements of the leak detector are near sump pumps, water heaters, washing machines, dishwashers, under sinks, etc.
• Bonus Pack includes 2 Leak Alert units - batteries are not included

Zircon

• Dripping and Leaking Alarm: Besides 2 groups of back water detector probes, each detector also has 1 group of front probes for pipe dripping. Place them in your bathroom, basement, kitchen, underneath your sink or by your water heater. Quickly detects water leakage, therefore saving you lots of money on costly water damage & repairs
• Wireless and Easy to Use: No wire or setup required, the mini size allow you to put it on any place that the dripping and leaking could happen. If you have purchased our Water Leak Detector kit, you can add it to the kit, then when you are not at home, you will also be able to monitor your home's leaks on your phone. Search "B07QP153GT" to find Water Leak Detector kit on Amazon
• Loud Alarm Audio: Each water leak detector features an ultra-loud 100 DB alarm audio. Loud enough to be heard even if leak happens in basement, press the button to mute the sound when you find the leaking place
• Low Battery Alert and Waterproof: The water sensor alarm will beep and flash red light when battery is low, Or press the button on it to test the battery level, and the complete sealed waterproof structure ensure its long lifespan in moisture situation
• Your Purchase Protected: Govee provide 30 days money back guarantee & 1 year replacement warranty & life support guarantee unconditionally (Battery replacement not included). Purchase one to take care of you family and property without any risk

Govee

• Wi-Fi water leak detector sends alerts by text and email. Also has an audible alarm. Geofencing technology can tell who's nearest, and sends an "all clear" when the problem has been resolved. Does not need a separate hub or base station. A 4 Ft. extension sensors (sold separately). Senses temperature and humidity. Monitoring home humidity levels can assist in alerting homeowner of potential mold formation in the home. Install water leak detection systems on major appliances such as refrigerators, washing machines or hot water heaters to monitor leaks. Detector is reusable. Cold-Alert detection. Easy to install.
• Temperature sensing -30F to 150F (-35C to 65C)

Honeywell Home