Govee’s water leak kit starts with a single, smart gateway that plugs into your WiFi. That hub connects to up to 20 separate sensors. For most homes, that means you can cover every sink, toilet, water heater, and washing machine without buying additional receivers. The system sends alerts straight to your phone, email, or as an app notification the moment a sensor detects moisture. It’s fast enough to catch a slow drip before it becomes a soaked floorboard.

Each sensor uses two contact probes and a separate backwater probe for different leak types. The 100-decibel onboard alarm is loud enough to hear from the basement while you’re upstairs. The gateway handles the WiFi connection, so the sensors themselves just need the included AAA batteries. Setup takes about ten minutes: pair each sensor to the hub through the app, place them near risk areas, and you’re done.

The 9-volt DC power on the gateway keeps it running reliably, but the real limitation is placement. The sensors are wired to the hub, so you need the gateway within a reasonable distance of your trouble spots. For a single-story home or apartment, that’s rarely an issue. For a large house with a finished basement and a far-flung laundry room, you might need a second gateway to cover everything. For the price of a three-pack, this is one of the most straightforward leak detection setups you can install today.