Best Water Leak Detectors

Water damage is the second highest home insurance claim that costs on average $10,000 to remediate. Early detection with the help of water sensors help to reduce damage. Let’s look at these small, but mighty sensors that aid in keeping your home water free.

 Best Monitored Water Leak Detector

Vivint Water Sensor

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Our Rating

  • Connects to Vivint’s professionally monitored home security system to instantly alert you of water leaks
  • Built with temperature monitoring to detect dangerous room temperatures to avoid burst pipes
  • Includes tamper detection to send mobile alerts if the sensor is meddled with
 Best Battery-Powered Water Leak Detector

ADT Flood Detector

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Our Rating

  • Battery-powered water sensor detector with a 10-year battery life
  • Pairs with ADT home security system and equipment for professional monitoring and instant alerts
  • Flexible placement to install anywhere there’s potential for water damage
 Best Smart Water Leak Detector

leakSMART Water Leak Detection Kit

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Our Rating

  • Sends instant mobile notifications when a water leak is detected
  • Connects to Z-Wave smart home hub systems for wireless smart home connectivity
  • Includes a shut-off valve to automatically turn off your home’s water system during a water leak

5 Best Water Leak Detectors

  • Vivint Water Sensor

    Best Monitored Water Leak Detector

  • ADT Flood Detector

    Best Battery-Powered Water Leak Detector

  • leakSMART Water Leak Detection Kit

    Best Smart Water Leak Detector

  • Basement Watchdog High Water Alarm

    Safety.com’s Top Pick

  • SimpliSafe Water Sensor

    Safety.com’s Top Pick

A full security system may be the peace of mind you and your loved ones need

Water Sensor Detector Features to Shop For

  • Automatic leak shut-off – Some water sensor detectors will spot leaks and automatically shut off the main water source in your home. These smart flood sensors connect to smart valves, and your home’s smart home hub or Wi-Fi to automatically detect and stop water from flowing. If you’d like a sensor that stops your home’s main water source, professional installation is required.
  • Temperature monitoring – Knowing when pipes are freezing and on the verge of bursting can save money on repair costs.  The best water sensor detectors have built-in temperature monitoring to detect and alert you of freezing and unsafe room temperatures.
  • Water leak detector expandability – Chances are, you’ll need multiple water sensor detectors to spot leaks. Some detectors include at least 4-6 feet of sensor cable to connect sensors for expanded water detection coverage.

Our Expert’s Top 15 Water Leak Detectors

Best Monitored Water Leak Detector

1. Vivint Water Sensor

Our Rating

Our take

Vivint’s water sensor detectors are battery-powered to place anywhere in the home. It’s designed with moisture monitoring to detect leaks and flooding. The sensor also includes temperature monitoring to detect and alert you of freezing temperatures. And if children tamper with the sensor you’ll instantly be notified using the Vivint Smart Home mobile app.

Stand-out features include

  • Automatically sends mobile notifications if a leak is detected
  • Includes temperature monitoring to detect and alert you of freezing temperatures
  • Battery-powered water detector for flexible placement
Best Battery-Powered Water Leak Detector

2. ADT Flood Detector

Our Rating

Our take

The ADT Flood Detector is a battery-powered water detector that can easily be placed anywhere in the home to detect water including laundry rooms and basements. This sensor has a battery life up to 10 years using a 3V battery. ADT’s Flood Detector comes with a wireless transmitter and pairs with ADT security equipment and professionally monitored home security systems to instantly alert you if sensors are triggered.

Stand-out features include

  • Automatically sends mobile notifications if a leak is detected
  • Pairs with a monitored security system to instantly alert you of triggered sensors
  • Battery-powered water detector for flexible placement
Best Smart Water Leak Detector

3. leakSMART Water Leak Detection Kit

Our Rating

Our take

The leakSMART water sensor detector immediately sounds an alarm and sends a mobile notification to your smartphone if a water leak is detected. The kit also includes a shut-off valve to automatically turn off your home’s water and prevent further damage. This water detection kit qualifies for insurance rebates but must be professionally installed.

Stand-out features include

  • Automatically sends mobile notifications if a leak is detected
  • Works with Z-Wave systems including Nest, Wink and Smart Things
  • Battery-powered water detector for flexible placement

4. Basement Watchdog High Water Alarm

Our Rating

Our take

The Basement Watchdog can detect water 1/32-inches deep. If water is detected, the sensor will sound a loud 110-decibel alarm for 2-3 days to alert you of water leaks. It uses a 9-volt battery and is equipped with a battery-saving feature to only use power when the sensor sounds its alarm. The water sensor detector can also be installed using wires to easily mount or install into sump pumps.

Stand-out features include

  • Sounds a 110-decibel alarm when the sensor detects water
  • Preserves the sensor’s battery life by only using power when the alarm sounds
  • Wired and battery powering options to easily install anywhere

5. SimpliSafe Water Sensor

Our Rating

Our take

The SimpliSafe water sensor is a wireless battery-powered and comes with adhesive to easily place anywhere. This water sensor detector pairs with the SimpliSafe home security system to continue to protect your home while alerting you of water leaks.

Stand-out features include

  • Automatically sends text and email alerts if a leak is detected
  • Sounds an alarm when the water detector’s probes are immersed in water
  • Battery-powered water detector for flexible placement

6. FrontPoint Flood Sensor

Our Rating

Our take

FrontPoint’s battery-powered flood sensor is designed to be corrosion-proof and durable. It water touches the detector, you’ll receive instant mobile notifications, hear a loud alarm and professional monitoring experts that monitor your FrontPoint home security system will notify you. The flood sensor works with a transmitter that’s placed separately from the sensor to stay dry and receive the water leak detector’s signals.

Stand-out features include

  • Automatically sends mobile notifications if a leak is detected
  • Pairs with a monitored security system to instantly alert you of triggered sensors
  • Battery-powered water detector for flexible placement

7. Ring Alarm Flood and Freeze Sensor

Our Rating

Our take

Ring’s Alarm Flood and Freeze Sensor uses a 3V lithium battery that lasts up to three years before replacing. It detects water leaks using Z-wave connectivity to the base station within 250 feet. The detector is designed to notify you when temperatures fall below 40-degrees using the sensor’s built-in temperature monitoring. Ring’s water and temperature sensor comes with a 1-year limited warranty and can be placed anywhere in the home to detect leaks.

Stand-out features include

  • Automatically sends a mobile notification and email if a leak is detected
  • Includes temperature monitoring to detect and alert you of freezing temperatures
  • Pairs with the Ring security system to instantly alert you of triggered sensors

8. Zircon Leak Alert Water Detector

Our Rating

Our take

Place Zircon water leak detectors anywhere throughout the home including the basement, garage and laundry room to detect potential water leaks and avoid costly damage. This detector pack uses a 9V alkaline battery to avoid the need for wires and wall outlets. If the sensor gets wet, you’ll hear a 90-decibel alarm that will sound loudly and continuously for up to three days. The sensors are also designed to work in the event of flooding.

Stand-out features include

  • Sounds a 90-decibel alarm when the sensor detects water
  • Includes five leak sensors to detect water leaks throughout your home
  • Battery-powered water detector for flexible placement

9. Flume Smart Home Water Monitoring System

Our Rating

Our take

The Flume water monitoring system includes a battery-powered water leak detector that connects to your home’s water meter. You’ll be able to monitor your home’s water usage and detect leaks using the Flume smartphone app and your home’s Wi-Fi to receive instant mobile alerts if your sensor detects water. Simply place the Flume Bridge within 1,000 feet of the sensor anywhere within your home to detect water leaks.

Stand-out features include

  • Automatically sends a mobile notification and email if a leak is detected
  • Tracks your home’s water using the Flume mobile app, water sensor and Wi-Fi
  • Battery-powered water detector for flexible placement

10. 2-in-1 Govee Water Leak Detector Alarm

Our Rating

Our take

The Govee water leak detector is made of environmentally-friendly ABS material free of toxins and odors. It detects water from a 360-degree angle and includes adjustable water detection sensitivity. If the sensor detects water, it will sound a 120-decibel alarm. Simply place the battery-powered water leak detector on the floor next to pipes, dishwashers and other appliances for the sensor to easily detect leaks.

Stand-out features include

  • Sounds a 120-decibel alarm when the sensor detects water
  • Adjustable water detection sensitivity
  • Battery-powered water detector designed to be placed on the floor next to the appliances or equipment

11. Honeywell Wi-Fi Water Leak and Freeze Detector

Our Rating

Our take

Honeywell’s battery-powered water leak detector includes a cable sensor to detect leaks in larger areas for expanded water detection coverage. It can be mounted on walls or placed on the floor near washing machines, water heaters and other household appliances to quickly detect water leaks. The sensor can be controlled using the Lyric mobile app for your convenience and peace of mind at all times. This Honeywell water sensor is also designed to be reusable after water detection.

Stand-out features include

  • Designed to be reusable after a water detection
  • Includes temperature monitoring to detect and alert you of freezing temperatures and humidity
  • Battery-powered water detector for flexible placement

12. Aeotec Water Sensor

Our Rating

Our take

The Aeotec water sensor detector is a Z-Wave Plus detector that works within 492 feet of the detector to detect leaks. It’s equipped with temperature control to monitor temperatures -4 and 212-degrees Fahrenheit. This sensor detects water leaks, floods and overflows. If this sensor detects as little as ⅓-inch of water, it will sound a 60-decibel siren to alert you.

Stand-out features include

  • Sounds a 60-decibel alarm when the sensor detects water
  • Includes temperature monitoring to detect and alert you of freezing temperatures
  • Battery-powered water detector for flexible placement

13. FIBARO Flood Sensor

Our Rating

Our take

FIBARO’s Z-Wave Plus flood sensor works with several Z-Wave systems including SmartThings and Vera to detect water leaks and flooding. If water is detected, you’ll automatically receive a text message or email. This battery-powered sensor also includes temperature monitoring to alert you of unsafe home climate conditions such as freezing pipes.

Stand-out features include

  • Automatically sends mobile notifications if a leak is detected
  • Works with Z-Wave systems including SmartThings, Vera and Nexia
  • Includes temperature monitoring to detect and alert you of freezing temperatures

14. Roost Smart Water and Freeze Detector

Our Rating

Our take

The Roost water and freeze detector spots water leaks and dangerous temperatures. If a leak is detected, the Roost mobile app will instantly send a push notification to alert you. You’ll also be able to adjust your sensor’s temperature range using your smartphone. The water sensor detector is battery-powered with over three years of battery life.

Stand-out features include

  • Automatically sends mobile notifications if a leak is detected
  • Works with Z-Wave systems including SmartThings, Vera and Nexia
  • Includes temperature monitoring to detect and alert you of freezing temperatures

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Factors to Consider Before Buying a Water Leak Detector

  • Power source – Most water sensor detectors are battery-operated to easily be placed anywhere in the home without requiring professional wiring or wall outlets. If there’s ever a power outage, your water sensor detectors will continue to work. However, depending on the sensor, some must be wired and connect to your home’s water system for special features such as automatically shutting off your home’s main water source if a leak is detected. If you’re leaning towards a battery-powered water sensor detector, look for one with long battery life – some can last up to 10 years. You’ll also want to make sure your sensor has a low-battery warning to automatically alert you that it’s time to change the battery.
  • Water detection  – Some water sensor detectors detect water leaks at less than ⅓ inch while others notify you of a leak as soon as water touches the sensor. Before you purchase a water detector make sure you understand how much water it takes to sound an alarm or send a mobile push notification. The best water leak detectors have adjustable sensitivity to give you the power of how much water should accumulate before sounding an alarm. Also, consider a sensor that floats just in case leaks quickly turn into floods. You’ll still be alerted when your sensor is submerged in water.
  • Water detection alerts – Small leaks can lead to big problems quickly. If your detector spots a leak, you’ll need to know immediately to avoid costly damage to your home. There are few ways water leak detectors can alert you of bursts, leaks or flooding. If the sensor is connected to a monitored home security system, the triggered sensor will alert your provider’s monitoring center to let you know about the potential leak. Smart Wi-Fi water sensor detectors connect to smartphones to send instant mobile notifications if there’s a water leak or flooding. Keep in mind, that some smart water sensor detector requires a Z-wave hub for mobile alerts and other features including water usage and low-battery alerts. With Z-wave smart water sensor detector, you’ll have remote control and instant mobile alerts using your SmartThings Hub, HomeKit or other Z-wave smart home hubs. Lastly, some sensors may sound a high-decibel alarm as loud as a smoke alarm if a water leak is detected. Some alarms sound for 2-3 days continuously until the leak is fixed.

Benefits of Water and Flood Sensors

  • Less costly repairs – Water damage is one of the leading insurance claims. According to recent data by the Insurance Information Institute, between 2013 and 2017, the average water claim was $10,234 – the second highest to fire and lightning. Knowing the moment there’s a water leak or frozen pipe can save money with less costly repairs and damages.
  • Instant alerts – Whether you’re home or away, your flood sensor can alert you of possible water leaks and dangers to respond quickly. The moment your flood sensor detects water, you’ll be alerted to reduce the risk of flooding, mold and other risks that build over time.
  • Safety – Flood sensors instantly detecting and alerting you of leaks that could lead to safety concerns. When water building around areas and appliances where it shouldn’t is hazardous. It can lead to electrical risks and home structure damage. At worst, it could lead to flooded areas and contamination.

Water leak detectors can save you thousands of dollars in repair costs, but picking the right one for your home is the key. Remember to keep our team’s factors, features and recommendations in mind. To browse popular options, check out Amazon’s best-selling water leak detectors next.

Water and Flood Sensor FAQs

How does a water leak detector work?

Most water sensor detectors include two parts – the sensor and the transmitter. The transmitter is often placed within a certain range of the sensor to send a signal of water is detected. The flood sensor often includes metal probes that will alert the transmitter if water touches them. Oftentimes, an alarm will sound and a mobile alert will sound.

Where can I install a water leak detector?

Most water sensor detectors can be installed anywhere there are potential water leaks such as next to dishwashers, laundry rooms, toilets and refrigerators. Pay attention to your provider’s installation instructions for the best water detection and places to avoid setting up sensors. Keep in mind that some sensors may not be placed on carpet or outdoors.

How many water sensor detectors do I need?

The number of water sensor detectors you need depends on your home and potential water damage. For instance, leakSMART can support up to 30 sensors. Start by making a list of areas that you’d like to monitor for potential water leaks and damage. If you’d like to connect sensors to cover larger areas, such as the kitchen or laundry room, add a sensor cable for expanded water detection.