A battery-powered Gen4 water leak sensor with a 2 m extendable leak-detection cable (up to 150 m) for catching leaks along pipes, walls, and large floor areas. Multiprotocol over Wi-Fi, Bluetooth, Zigbee, and Matter, with selectable Flood and Rain operating modes and IP44 protection.
One mode at a time: the device serves one of these combinations, not all of them at once.
Entities in Home Assistant
Typical 1 entity via Matter
This model has no device dump in Home Assistant's test suite, so the list below is what a Matter Water Leak Detector exposes at minimum. Optional features the manufacturer implements add entities on top.
Primary entities 1 What automations and dashboards use.
| Entity | Type | Device class | Unit |
|---|---|---|---|
| Water leak | binary_sensor | moisture | — |
Derived from Home Assistant 2026.8.3: the entities every reference implementation of a Matter Water Leak Detector produced in core's own tests. A floor, not the full list for this model.
Recipes using this device
Leak Auto Shutoff
Installs a Home Assistant automation that closes your water shutoff valve the instant a leak sensor goes wet, so a burst hose or a failed valve stops flooding within seconds. Add a smart plug to cut the appliance, a siren, and a speaker.
Water Leak Alert
Installs a Home Assistant automation that watches every water leak sensor you select and alerts you the moment one goes wet, naming the spot so you know where to look. Add a speaker and the same warning is announced out loud.