Best Water Sensors to Monitor Leaks

Review & Comparison, Last Update September 27, 2017
Can you imagine coming back home and finding a water flooding that caused damage to your property? We bet you wouldn't like that. A good water leak sensor will help you prevent such situations. It detects flood when it is just a small leak and alarms you with a sound signal and push-notification, providing you with enough time to prevent disaster. ...Read more ...Read less
BEST 2017
PROS
CONS
OUR VERDICT
Operation
Detection method
Connection and data transfer
Alarm
Power source
Dimensions
Packaging
Warranty
 
PROS

The DCH-S160 is very easy to install. With a built-in Wi-Fi, you can connect it directly to the local network without using additional hubs. 

CONS

It should be located near the socket. 

OUR VERDICT

The D-Link sensor is an excellent device that will alarm you about the leak with a signal or a push-notification via a special app. Therefore, you can always monitor what's happening in your home, even when being away at work or elsewhere. 

detailed parameters
Operation

Autonomous 

Detection method

Plugged-in sensor cable for covering a specific area 

Connection and data transfer
  • Wireless connection to the local network via WI-FI
  • Compatible with other D-Link devices 
Alarm
  • Built-in sound alarm (70 db)
  • Mobile push notifications (when the app is on)
Power source

Input: 125V AC, 50/60 Hz

Dimensions

2.56 x 2.56 x 2.07 inches

Packaging
  • Wi-Fi Water Sensor (DCH-S160)
  • Sensor cable (1.6 ft)
  • RJ-11 extension cable (3.2 ft) 
  • Quick install card 
Warranty

1 year

PROS

Can be placed just about anywhere because of its compact size and discreet design. 

CONS

The connection to other devices is necessary. 

OUR VERDICT

If you want your house to be smart, this sensor is your must-have. With its help, you will control your entire home creating profiles and integrating your smart devices into subgroups, to further regulate them via your smartphone. 

detailed parameters
Operation

Complex 

Detection method

Spot sensor (two metal contacts on the bottom of the sensor)

Connection and data transfer
  • Wireless connection with Samsung Smart Things Hub (not included) 
Alarm
  • Depends on the connected devices and settings 
Power source

1 x CR2 batteries required (included)

Dimensions

2.3 x 1.5 x 0.9 inches

Packaging
  • Water sensor 
  • Quick start guide 
Warranty

1 year

PROS

Buying this device, you get two sensors instead of one. Thus, you can reinforce your home security system, monitoring not one but several areas at the same time. 

CONS

If water gets inside the sensor, it may fail. 

OUR VERDICT

Would you like to get an easy-to-use sensor for a reasonable price? The Zircon 68320 may become just the right water detector you have been searching for. Being a fully automatic device, it allows for basic control of water leaks and signalizes you if there is a problem. 

detailed parameters
Operation

Autonomous 

Detection method

Two metal contacts on the bottom of the sensor 

Connection and data transfer
  • Fully automatic 
Alarm
  • Built-in sound alarm (85 db)
Power source

1 x 9V battery required (not included)

Dimensions

6 x 3 x 9 inches

Packaging
  • Two leak alert units
  • Detailed manual  
Warranty

1 year

PROS

This spot sensor is highly accurate and will react even when there is 0.03% of an inch of water. 

CONS

The setting and syncing with other Z-Wave devices might seem fussy. 

OUR VERDICT

The Aeotec DSB45 is a high-class sensor that instantly alarms you when the leak occurs. Plus, if you have similar devices from other brands, you can sync them with Z-Wave just as well to achieve a complete security system. 

detailed parameters
Operation

Complex 

Detection method

Spot sensor (a small detector at the end of the cable)

Connection and data transfer
  • Wireless connection with other devices and sensors 
Alarm
  • Depends on the connected devices 
Power source

2 AAA batteries required (included)

Dimensions

3.1 x 0.8 x 1.3 inches

Packaging
  • Water Sensor
  • AAA batteries (x2)
  • Two screws 
  • Waterproof 3M adhesive 
  • Double-sided adhesive (x2)
Warranty

1 year

PROS

If you want to widen the monitored area, the RWD41 will give you this option. You can lengthen the sensor cable up to 250 ft so that it covers more space.  

CONS

The sound alarm might seem low. 

OUR VERDICT

With this sensor, you can be sure that if water leak occurs, you will be informed about it immediately. Plus, you can set the sensor cable even to the most hard-to-reach places. 

detailed parameters
Operation

Autonomous 

Detection method

Plugged-in sensor cable for covering a specific area 

Connection and data transfer
  • Fully automatic
Alarm
  • Built-in sound alarm (80 db)
Power source

1 x 9V battery required (not included)

Dimensions

1.5 x 7.5 x 7.4 inches

Packaging
  • Water sensor alarm
  • Mounting tape
  • Leak-detection cable (4 ft)
  • Extended cable (6 ft)
  • Five cable-securing clips 
Warranty

1 year

What is a Water Sensor?

Every person wants to secure their homes from the damage that emergency situations like fire or water leakage may cause. Nowadays, you can find a great number of useful devices designed for this very purpose. For example, smoke detectors are used for preventing fire spread and allow a quick fire extinguishing. Water sensors, on the other hand, enable you to react to a water leakage as quickly as possible. Their main function is to detect water emergency in the controlled area and alarm you about it. With the help of such a useful device, you can protect your property from unwanted damage and save the money. For customers who want to turn their house into a smart home, we'd also recommend buying a complete security system to protect yourself and your family from criminal invasion and property from theft.

What Features to Compare

Operation

The first thing to do before buying a water sensor is to decide where and in what conditions it will be applied and only then choose the model. We can separate sensors by the area they cover and their features. Thereby, there are models that detect liquid on a certain point and those that work in a wide area. Also, they can be either passive or active. The difference between the two is that a passive detector reveals the leak and informs you about it with a sound signal or via your smartphone. The active one, on the opposite, not only detects the flow, it can also control the equipment it is connected to. For example, it can turn off the power of a washing machine or a water-heating tank in case they flow. 

Alarm 

The alarming method will vary with a model type. If your sensor is autonomous, it will inform you about the leak with a sound or a visual signal. Plus, it doesn’t require the connection with other devices. On the opposite, a complex sensor supports connection with your smartphone and other gadgets. In the event of a water leak, you will receive push-notifications even when being away from home. Keep in mind, some sensors connect to the local network via Wi-Fi, others need a router instead. These are the features that you should definitely check out to get the sensor suitable for you. 

Ease of use  

Furthermore, do not forget to consider usability features. Sensor dimensions will be one of them. Some manufacturers produce very compact models that take very little space and look practically inconspicuous. Others may come in a bigger size and have a more distinguished design. Consider the source of power supply. Water sensors can work either from an outlet or run on batteries. Thus, if you don't have a suitable place to position a sensor with an outlet nearby, your choice should be a rechargeable sensor. If you've got enough outlets on the walls, we'd recommend you to opt for corded water sensors that provide non-stop run time without requiring batteries replacement. 

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D-Link DCH-S160 mydlink

One Part of the Whole

This water sensor by D-Link is an excellent example of modern technological devices that help keep your house safe. Being a fully autonomous device, the DCH-S160 has two inner antennas for Wi-Fi connection to the local network, so you won’t need to purchase a hub to expand its options. As for its design, it has a glossy white finish and a backlit logo on its front side. There is also a LED status that informs you about a water problem. When it glows green, it means the device is connected and working properly. In case it detects a water leakage in the controlled area, it will start to glow red, producing a beeping sound. Because a lot of users find this sound not very loud, they advise to amplify it with the D-Link Wi-Fi Siren produced by the same manufacturer. However, if the sound is your least concern, you will be totally happy with its performance. Besides, considering that you will anyway receive notifications on your phone, having the siren roaring in your neighborhood whilst you're away at work might be not such a good idea.

Review of D-Link DCH-S160 mydlink Wi-Fi Water Sensor

Stay Informed 24/7

With the exception of sound and LED alarm, the D-Link DCH-S160 uses a mydlink app for both iOS and Android, to notify users of the exact place where a water loss occurred. The mydlink has very simple controls and can be used to monitor several different devices at a time. On the main screen, you will see the last detection tab and information tab, with one of them showing the list of all water detects sorted by date and the other one providing data on your app, ID address, etc. This way, this water sensor not only will always inform you about water flows but will also save these events in the memory of the app. May come in useful, who knows. 

D-Link DCH-S160 mydlink Wi-Fi Water Sensor in the use

It's up to You Where to Place It

This water leak detection sensor uses a sensor cable to reveal water in a particular area. The cable is 1.6 feet in length, so it covers a wide area. Besides, it is equipped with an RJ-11 extension cable that is 3.2 feet long. Therefore, even if you'd need to locate the sensor at some distance from an outlet, the length of the cable will be enough. 

Detailed review of D-Link DCH-S160 mydlink Wi-Fi Water Sensor

It May Offer You Much More

The D-Link water sensor offers compatibility with all sensors and devices produced by D-Link. Thus, you can place your HD camera next to the sensor and watch over your house from your phone. Another solution from D-Link that can help turn your house into a more automated and smart place is smart plugs, with the help of which you can organize the power supply in your place in the most efficient way. 

D-Link DCH-S160 mydlink Wi-Fi Water Sensor application

Additional Info

User Manual     Manufacturer


D-Link DCH-S160 mydlink
D-Link DCH-S160 mydlink
 

Samsung SmartThings

Make Your House Smarter

Samsung is certainly one of the leaders in manufacturing electronic devices. They produce products of the highest-quality to make our lives easier. SmartThings is the series of gadgets whose main purpose is to make the management of routine tasks more convenient and simpler. And the SmartThings water sensor is one of these things. This sensor is wireless, which means you will need to get a hub to enable its proper functioning. According to specifications, the best place for a hub is within the range from 50 to 150 feet from the sensor. If placed farther, it might fail to catch the signal. The remarkable thing about this sensor is that it can also serve as a home thermometer, measuring an ambient temperature inside your home. 

Review of Samsung SmartThings Water Leak Sensor

Everything Is in Your Pocket

The SmartThings app is a combination of vast possibilities and maximally simple interface. Therefore, it is very convenient in use. Not only does it connect to all of your household appliances to control them, it also enables you to create and set up customized profiles, allowing you to activate/deactivate different sensors, switches, lamps, cameras, doorbell, etc with one button. While when you're not at home and the sensor detects a water leak, it sends push-notifications on your phone, informing you of emergency by the instant. 

Samsung SmartThings Water Leak Sensor in the use

It Is Simpler Than Ever

To set up this sensor, you will need to follow just a few steps. Firstly, take off the top cap and remove a fail-safe mechanism from the battery. Then, press the connect button on the housing. You will see the indicator flash, meaning the sensor switched to the sync mode. The only thing left to do now is to add it to the list of active devices in your app. Even though the process might seem tricky and obscure, you will quickly figure out what's what.

Detailed review of Samsung SmartThings Water Leak Sensor

You May Not Worry About the Battery

This Samsung water leak sensor runs on one CR2 battery that you get together with the set. One battery, on average, serves for about 2-3 years, which is long enough to spare you the need to buy more in the nearest future. 

Samsung SmartThings Water Leak Sensor application

Additional Info

    Manufacturer


Samsung SmartThings
Samsung SmartThings
 

Zircon 68320

A Completely Autonomous Detector

The Zircon 68320 is a wireless and independent device that will inform you about a water leak immediately when it happens. It is a very user-friendly and simple-to-control model that you will not have any problem to install without help. To alert users of a water leak, it has two metal strips on one of its sides through which runs the electrical current and once one of the strips gets wet, sparks off the alarm. Even a small drop of water may trigger the alarm. To ensure proper functioning of the sensor, the manufacturer recommends installing it in places such as under the plumbing, sink, water heater, etc. so that its contacts would touch the surface of the floor. Going for the Zircon 68320, you actually get several devices. Depending on your needs, you can order a set containing 2, 5 or 8 water sensors to control several areas in your house. Interestingly enough, the more sensors there are in the set, the less expensive the kit will be. Thus, think twice and buy once. 

Review of Zircon 68320 Leak Water Detector

You Will Definitely Hear It

The sensor has a built-in 85 dB alarm. The sound it produces is pretty loud and comparable with a working motorbike engine. As soon as water gets on metal contacts, the sensor starts beeping. The siren alarm can be left on for as long as needed, up until you yourself turn it off or the battery goes completely flat (72 hours). 

Zircon 68320 Leak Water Detector in the use

You Can Use a Coin

The housing of this sensor is made so that it can be opened easily without any tools. Anything similar to a coin at hand should let you budge the cover and reach the battery compartment. The battery, though, isn't included and you will need to buy it from a store. Make sure that you look for 9V type batteries. 

Detailed review of Zircon 68320 Leak Water Detector

A Test Won't Be a Waste

Before installing the sensor, we recommend you to put it in test first. This should help not only check its operability but also figure out how it works. So, what you can do is install a battery in the compartment, wet your fingers and touch the contacts on the back of the sensor. If it doesn't have any defects, it will detect water immediately and alarm you with a signal. Only then, install the sensor properly in place. 

Zircon 68320 Leak Water Detector application

Additional Info

User Manual     Manufacturer


Zircon 68320
Zircon 68320
 

Aeotec DSB45 Z-Wave

The Future Is Already Here

Z-Wave devices by Aeotec are an excellent alternative to similar devices with a higher price tag that can help secure your house, making it technologically developed and smart. One of the obvious advantages of Z-Wave over other brands is its improved wireless performance effective in the range up to 300 feet. Thus, you get a reliable and high-quality connection with all of the devices synced with the sensor. The DSB45-Wave sensor is able to detect a presence of water in both small and big amounts, as well as notify you about its absence in places where it's got to be, like for example in fish tanks. The DSB45-Wave sensor looks quite simple and consists of two parts - the main block and a cable that has a water probe with two prongs on the end. When installing the sensor, make sure that these prongs face downward and the main block is located 1 meter above the floor. You will find more detailed instructions in the manual that comes with the sensor. 

Review of Aeotec DSB45 Z-Wave Water Sensor

It Is Super Accurate

Compared to many similar models, the Aeotec DSB45 is highly accurate, and it will detect presence or absence of as little as 0.03% of an inch of water. For this reason, even if there is a small amount of liquid in the controlled area, the sensor will inform you about it in an instant. Undoubtedly, with this model, you will know about the leak long before it becomes a flood. 

Aeotec DSB45 Z-Wave Water Sensor in the use

Excellent Compatibility

In order to monitor water flow, you need to link this sensor to the local network of Z-Wave devices. It is also fully compatible with other security devices of this class that have a similar principle of operation. Thus, if you're already half way through automatizing your house and have devices of other brands installed, you will still make use out of the Z-Wave sensor and be able to unite them all in one complete network.  

Detailed review of Aeotec DSB45 Z-Wave Water Sensor

Everything You Need Is in the Box

Alongside the sensor, the package includes batteries, two double-sided adhesives, two screws, and one waterproof 3M adhesive, all that you need to mount it in place. 

Aeotec DSB45 Z-Wave Water Sensor application

Additional Info

User Manual     Manufacturer


Aeotec DSB45 Z-Wave
Aeotec DSB45 Z-Wave
 

Honeywell RWD41

Optimal Solution of Challenging Tasks

Would you like to secure yourself from a possible water damage and cover a wide area of space? If so, we'd recommend you to consider the Honeywell RWD41 water sensor. Having gained an immense experience in meeting customers' desires, Honeywell company produces only top-quality products to cater to multiple needs. This water sensor comes as the proof of this. Despite overall small dimensions, the RWD41 is able to detect presence of water in a very big space. The manufacturer recommends installing it in places where the risk of water leakage is very high, like, for example, under a washing machine, dish washer, water heater, toilet, etc. Equipped with a loud alert system (80dB), the sensor instantly alarms about emergence of water, continuously beeping until someone deactivates the siren by wiping the cable dry. The sensor itself looks very discreet and won't stick out too much, attracting attention.  

Review of Honeywell RWD41 Water Sensing Alarm

Expand It for More Effect

One of the things that customers love about the RWD41 is that it offers the option to extend its cable length up to 240 feet, thus making it easier to find a suitable installation place for it. 

Honeywell RWD41 Water Sensing Alarm in the use

Just Fit the Battery Into a Slot

The RWD41 Water Defense sensor works off a 9V type battery, which, unfortunately, isn't included in the set. The good news is, the batteries of this type are the most common and available almost in any store, so buying one (and replacing) won't be a problem. Keep an eye on the alert indicator to know when a battery runs out of charge. 

Detailed review of Honeywell RWD41 Water Sensing Alarm

Convenient Installation

The manufacturer supplies this sensor with five cable-securing clips that you can use to arrange its position. 

Honeywell RWD41 Water Sensing Alarm application

Additional Info

User Manual     Manufacturer


Honeywell RWD41
Honeywell RWD41
 

FAQ:

Q: How many water sensors should I use?

A: It depends on how many and how big the areas you'd like to protect. Most often, water leak sensors are placed near or under washing machines, dish washers, water heaters, sinks, toilets, and other places where there is a risk of a water leak. If the area you want to monitor is quite wide, you can install a leak detector with a sensor cable, it covers a more extensive area. Some manufacturer offer sets of sensors, containing 2, 5 and 8 units for multiple locations. 

Q: How big the leak should be before the sensor detects it?

A: As a rule, a few ounces will be enough to activate the sensor. Some of the sensors detect humidity, so even lesser water will be enough. In any case, when installing the sensor, make sure that you position it close enough to the location where the leak might occur.

Q: How can I make sure that my water sensor is working?

A: Well, that is quite simple. You just need to moisten a towel and put it on or near the cable. In case you use a spot sensor with metal contacts, you can wet your fingers and touch the strips. In both cases, the sensor will start the alarm, when it is wet. If not, but you have followed all the instructions about its installation, we recommend you to address a support service.  

Q: How do I know there is a water leak in my house?

A: Well, with the exception of a water leak sensor that will let you know when the leak occurs, there are some indications for you to look for if you suspect such a problem. You may start worrying if you observe the next:

  • A drop in water pressure or flow volume
  • A rusty or dirty water 
  • An unexplained increase in your water bill.

Q: What causes leaks?

A: Actually, there are a lot of possible factors that may cause to a water leak. However, there are several most common causes, such as corrosion and deterioration of the plumbing, water pressure, shifting, accidental breaks, etc. Anyway, even if there is a small leak, don’t ignore it, since it will definitely grow into a bigger flood and will cause more problems.


Sources:

1. Lara Edge How to Prevent Water Damage, HouseLogic

2. 10 Things You Must Know: Plumbing LeaksDIY Network

3. Water detectorWikipedia.

4. Oliver Balch Plugging the leaks: how digital tools can prevent water loss, The Guardian. December 11, 2014. 

5. How to Find a Water Leak in Your HousewikiHow

6. Sherry Huang How to choose a Humidity Sensor? LinkedIn. January 7, 2016. 

7. How Water Sensors Can Help Prevent Costly Water Damage, travelers

8. 5 Smart Home Automation Safety Tipstravelers.

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Publish Date: 2017-07-28 16:48:14