THIRDREALITY Smart Water Leak Sensor KM1, Matter Over WiFi, 1 KM1-controller with 100dB Alarm & 3 Water Detectors, 3-Year Battery Life, No Batteries, Work with Apple Home, Alexa, Home Assistant, Homey

The ThirdReality Smart Water Leak Sensor KM1 protects your home from costly water damage with Matter-over-WiFi connectivity. Because it is Matter-certified, the system links directly into Apple Home, Amazon Alexa, Home Assistant, and other Matter controllers, sending instant leak alerts to your phone alongside ecosystem automations no matter which platform you run.

The kit pairs one KM1 controller with three water detectors, so a single hub covers multiple risk areas like under sinks, water heaters, and washing machines. A built-in 100dB alarm is loud enough to be heard from a basement or enclosed space, and the controller offers up to 328 ft of wireless range. Each detector runs on AAA batteries rated for up to three years, keeping maintenance minimal while detection stays continuous.