Honeywell makes reliable home monitoring gear, and the CHW3610W1001 Wi-Fi Water Leak Detector is a straightforward solution for a messy problem. It connects directly to your home network, sending alerts to your phone via the app when moisture is detected. No hub required. The included cable sensor extends the detection area, so you can snake it behind a washing machine, under a sink, or near a water heater.

Setup is simple. Three AA batteries are included, and the unit mounts on a wall or sits on a flat surface. The app is clean and functional—it pushes notifications fast, which is the whole point. The sensor reacts to even small amounts of water, and the 24-volt DC input gives you a wired backup option if you want to skip batteries.

One honest note: the app doesn’t integrate with broader smart home platforms like Alexa or HomeKit. You’re stuck with Honeywell’s own interface for alerts and controls. That’s fine for a single sensor, but if you’re building out a full smart home system, you’ll want to check compatibility first. For a dedicated, no-fuss leak detector, this gets the job done.