The 7 Best Smart Water Sensors of 2020

The easiest way to detect leaks before major damage happens

Easiest to Use: Honeywell Lyric Wi-Fi Water Leak and Freeze Detector

Honeywell has been a trusted home brand for many years, and the Honeywell Lyric Wi-Fi Water Leak and Freeze detector lives up to that trusted name. This smart water sensor is easy to set up and, unlike some of the other sensors out there, doesn’t require a smart home hub to work. If you’re at home when the Lyric detects water, you’ll hear an audible alarm to immediately alert you of the leak. If you’re not at home, the Lyric connects directly to Wi-Fi and has an easy-to-use app that sends alerts directly to your smartphone if it detects water. Plus, it provides temperature and humidity readings, so you can really get to know your home’s baseline – something that will really help you detect warning signs early on if something is not right. The Lyric smart water sensor runs on easy-to-change, long-lasting AAA batteries to make it even simpler to add to your home setup.

Best Budget: Samsung SmartThings ADT Water Leak Detector

Samsung is expanding its arena of smart home products with clever, innovative and affordable solutions. The Samsung SmartThings Water Leak Detector follows this pattern with a straightforward, easy-to-use app that alerts you if water is detected or if the humidity or temperature fall outside your preset levels, allowing you to personalize the alerts.

The SmartThings ADT Water Leak Detector is a Wi-Fi-connected, multi-function sensor that detects major home problems such as water leaks, humidity and freezing or high temperatures. It can be connected to other ADT devices if you choose the service. At the budget-friendly price, the Samsung SmartThings Water Leak detector works well beneath toilets, under the kitchen sink, near the hot water heater or behind major appliances. It runs on included AAA batteries with a three-year battery life and comes with a 30-day money-back guarantee, as well as a one-year warranty – so why not try one out, especially if you have other Samsung products?

Best Extra-Long Sensor Cable: D-Link DCH-S16 Wi-Fi Water Sensor

The D-Link DCH-S16 Water Sensor made our list thanks to its unique cable sensor. The detachable cable (3.5-foot non-sensing and 1.65-foot sensor cable) includes leads embedded in it, so you can run it along the edge of your basement or bathroom’s floor. If water touches one of the leads, it sets off an alarm, allowing you to monitor a larger area and more quickly receive notice if any water is seeping in or leaking out.

The base unit plugs directly into the wall, so no batteries are required, and the built-in alarm has 70 decibels of sound power and a red blinking LED, so you will know your attention is needed right away. You can also connect your phone using the Mydlink mobile app and Wi-Fi to receive push notifications if leaks are detected. If you have other Mydlink smart products or IFTTT-enabled products, you can use the app to allow interaction between the water sensor and your other products for a synergistic effect in your home.

Best for Shutting Off Automatically: LeakSmart Water Leak Detection Sensors

Though a little pricier than some of the other sensors on our list, the LeakSmart sensor could wind up saving you a whole lot of money because it not only detects leaks, it connects to your water main and shuts off all the water automatically within five seconds of detecting a leak to prevent the damage from occurring using the LeakSmart Valve.

One leaky toilet, washing machine or water heater can cause thousands of dollars’ worth of damage if the leak isn’t detected right away. With the LeakSmart sensor, you don’t have to worry about that. You can integrate the LeakSmart Sensor with other smart home platforms; if you use Nest smart products, the LeakSmart has some special additional features. It easily integrates with other smart home platforms and provides special protection when paired with Nest. The LeakSmart Sensor also monitors temperature, so you will be alerted to any strange hot or cold drafts that might signal other home problems. 

Best for Travelers: Wally Starter Kit for Smart Detection of Water Leaks

Doesn’t it always seem like if something is going to go wrong at home, it happens while you are away? Even if you have a smart alarm to alert you, you might be scrambling for help if you find out you have a water leak while you are miles away. With the Wally system, you can also designate other contacts such as family members or neighbors to receive an alert via text, push notification, phone call or e-mail if a leak is detected.

You can also check in using the Wally mobile app to give you peace of mind while you are away from home. Wally monitors for water leaks, temperature fluctuations, as well as changes in humidity levels, helping you to avoid creating a hospitable environment for destructive molds and mildews. When used in conjunction with the Wally Shutoff Valve, Wally can automatically shut off your water when a leak is detected to prevent costly water damage. Wally can even tell you if a door or window is left open.

Best of all? If Wally alerts you of a problem, a Wally Rapid Response Associate will contact you to discuss the problem and will send a licensed service professional to your home if you need assistance. How’s that for customer service?

Best for HomeKit Fans: Fibaro Flood Sensor

If you have to set up your smart home around Apple’s HomeKit, the Fibaro Flood Sensor is a great choice for you. Siri fans can even check in with her to see how the sensor is functioning and to determine whether there are any problems detected at that time. The Fibaro Flood Sensor is tough too; it is one of the only water sensors on the market that is built to actually survive being submerged in flooding conditions. Connect devices to the Fibaro Flood Sensor using Bluetooth – especially convenient if you also have an Apple TV in the home – and use the Apple Home app or the Fibaro app to set up customized alerts about water leaks or other concerning conditions.

Loudest Alarm: Zircon 68882 Leak Alert

In certain disaster situations such as hurricanes, tornadoes or floods, Wi-Fi alerts won’t be helpful since the power often goes out, too. The Zircon 68882 Leak Alert is one of the most affordable water sensors on our list, but it creates a super-loud, battery-powered 105-decibel alarm and flashing SOS alert even if the power goes out, taking your Wi-Fi with it – no smart hub or wiring required.

The super-loud alarm makes it more likely that a neighbor or other passerby will hear it even if the leak happens when you are away from home. And of course, if the Wi-Fi is on, the Zircon Leak Alert sends e-mail alerts that you can check from anywhere. Combine multiple sensors in your home and name each of them during set up, so that your e-mail alert can immediately let you know which sensor was triggered.

What to Look for in a Smart Water Sensor

Plug-in sensors - Basic smart water sensors can only tell you if the sensor itself has gotten wet. You can buy an additional smart water sensor for each location you want to monitor, or look for a smart water sensor that has the ability to plug in additional sensors to cover more ground for less cost.

Smart home compatibility - If you have any other smart home sensors or devices already, look for a smart water sensor that’s compatible with your existing hub. This will save you the added cost of buying an additional hub just for your water sensors.

Long-life batteries - Some smart water sensors are designed to be plugged into a wall outlet and include a battery backup for when the power goes out. If you want to be able to set your water sensors in place and not have to worry about them for up to ten years, look for one with exceptional battery life.