How do I prevent water damage from leaks I can't see?

What's happening

Slow leaks under sinks, behind washing machines, or near water heaters can go unnoticed for a long time precisely because they're slow -- by the time damage is visible, it may already be extensive.

Why it matters

Unlike CO or radon, a water leak isn't governed by a safety-certification standard -- there's no UL/ANSI-type standard for leak sensors the way there is for CO and gas alarms. The value here is early warning, not certified detection accuracy.

What kind of solution

A water leak sensor is a small device placed near a likely leak source that alerts you when it detects moisture -- either with a local alarm only, or with remote app/SMS/email alerts if it's a connected model paired with a gateway. The choice mostly comes down to whether you're usually near enough to hear a local alarm, or want to know about a leak in a space you're not in.

Next step

Compare the water leak detectors covered by this site, or go directly to the GoveeLife 1s review if you already know you want a connected sensor.