Meross Smart Door and Window Sensor (Hub Required) A smart water leak sensor is designed to help detect and alert you to potential water leaks or flooding in your home. This device is valuable for preventing water damage and mold growth by providing early warnings. Meross HomeKit Hub is needed for installation. Works with Apple HomeKit and is compatible with SmartThings. Voice Access: Know the status of the device via HomePod / Siri. Alert: Your Meross app or Apple Home app will receive an alert instantly when leakage is detected. Sound Alarm: Up to about 60dB when alarming. Low Power Consumption: Up to 18 months lifespan of battery. Automation: Set triggers to control other Meross devices in the Meross app. IP67 Waterproof. Control Up to 16 Devices: One hub is able to control 16 Meross devices (sensors, detectors, thermostat valves) at the same time.