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The Best Smart Water-Leak Detector

Updated Dec 11, 2022
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Cool water can be refreshing—except when it’s in the form of a puddle that seeps from a toilet. A smart water-leak sensor can lessen the impact of plumbing problems by alerting you the moment they’re detected, whether you’re at home or away. We have yet to find a smart water-leak sensor that is perfect in every way, but the D-Link DCH-S1621KT Whole Home Smart Wi-Fi Water Leak Sensor Kit includes the features and capabilities that are most important. It responds to potential danger quickly, it has a loud onboard siren, and it integrates with other smart devices.

D-Link DCH-S1621KT Whole Home Smart Wi-Fi Water Leak Sensor Kit, the best smart water-leak sensor

D-Link DCH-S1621KT Whole Home Smart Wi-Fi Water Leak Sensor Kit

The best smart water-leak sensor
This D-Link kit has a plug-in Wi-Fi hub with an optional sensor cable and can connect with up to 16 battery-powered remote sensors. It responds quickly to potential problems with both a loud (94 dB) siren and fast smartphone alerts.
We recommend
Flo by Moen Smart Leak Detector, for monitoring small spaces

Flo by Moen Smart Leak Detector

For monitoring small spaces
The Flo monitors for water and temperature changes, even in hard-to-reach places, thanks to the included extender cable. It also responds quickly to emergencies, sending smartphone notifications, emails, and texts.
Another good choice
Proteus Aquo Wi-Fi Water Sensor, for advanced smart homes

Proteus Aquo Wi-Fi Water Sensor

For advanced smart homes
The Proteus Aquo is more customizable than any other water-leak sensor we tested. However, it has no dedicated app, it needs to be plugged in, and it’s more expensive than our other picks.
A better upgrade

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