Utilitech Water Leak Detector review: Wall-bound water detection on the cheap

Utilitech has an inexpensive sensor for Iris by Lowe's and other Z-Wave hubs, but it's a hassle to set up.

Jared Newman

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At a Glance

Of all the flood sensors available to Iris by Lowe’s users, Utilitech’s Water Leak Detector is the cheapest. It’s also the least flexible.

At $30 apiece, you could place a lot of these sensors around the house without breaking the bank, but each one is bothersome to set up and has limited battery life. Also, Lowe’s requires a premium subscription for integrations that are free with competing products.

Setting up the sensor

The Utilitech Water Leak Detector is the only product we’ve tested whose sensor must stick to a wall. After mounting the transmitter, you must run the attached cable down the wall using a set of included anchors, and then attach the sensor section so that it’s pointing toward the floor. Aside from being a pain to set up, Utilitech’s sensor doesn’t allow for certain practical uses, such as snaking the sensor underneath a washing machine, or placing it away from the wall.

At least the software setup is painless. Inserting three AA batteries and pressing the button next to them sets the sensor to pairing mode, and it’s quickly detected by the Iris by Lowe's app.

The Utilitech Water Leak Detector may work with other Z-Wave hubs, albeit imperfectly. Samsung’s SmartThings hub, for instance, recognized the sensor as an “EverSpring” device, but your mileage may vary as Utilitech only advertises the device as working with the Lowe’s system.

How it works

The Utilitech sensor itself has an internal siren, but an extremely weak one, giving off about 58 decibels in testing (in fact, the specifications on Lowe’s website indicate it doesn’t have an alarm at all). Fortunately, the Iris by Lowe’s hub has its own siren that’s much louder, at around 88 decibels, and it has its own battery backup to keep delivering alarms during an outage. With an internet connection, Iris by Lowe's will also call your phone, send you an email, and deliver a push notification in case of a leak, so there’s little chance you’ll miss an incident in progress. (One nitpick: You can’t disable any of these alerts except for the hub’s siren.)

On the downside, the Iris system gets expensive in a hurry if you want to integrate the sensor with other devices, such as water shutoff valves and smart lighting. Lowe’s charges $10 per month for these automations, which are free with other platforms such as Wink and SmartThings.

One other issue: While we haven’t tested long-term battery life, Utilitech claims that the three AA batteries require replacement after just one year, and the app doesn’t provide a battery level. Other battery-powered sensors tend to last at least a couple of years.

Between Utilitech’s low price and Iris’s strong alert capabilities, this sensor could be good enough. But it could also be a non-starter if you’re looking for a particular placement without a wall nearby.

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At a Glance
  • The Utilitech water leak detector is very inexpensive and can be incorporated into any Z-Wave smart-home hub. But its own siren is too quiet to be of any use, and it must be mounted to a vertical surface.


    • Relatively inexpensive
    • Works with any Z-Wave smart-home hub, including Iris by Lowe's
    • Cord extends range (but the sensor is only at the end of cord)


    • Module must be mounted to the wall
    • Battery lasts only one year
    • Very quiet siren
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