1. [Zigbee Water Leak Sensor] One Zigbee Hub Is Required and Sold Separately. Tuya ZigBee Water Leak Sensor is a intelligent sensor designed based on ZigBee 3.0 protocol. Users can match other intelligent devices to realize the whole house intelligence according to their needs through Tuya APP, with simple operation, high stability, strong anti-interference ability, and small power loss.2. [App ] Support Tuya SmartSmart Life App Control. Through the SMART LIFE APP, you can connect any smart device connected to Tuya for intelligent scene linkage. Batteries (AAA2) are required (not included).3. [Voice Control] Smart Sensor works with Alexa, google assistant, enabling simple voice control to your hands when you are coming through the kitchen door with your hands full of groceries, sleeping in your cozy bed, holding your , etc.4. [Customize Different Scene Modes] WiFi Smart Sensor allows you to quickly 'set the scene' for a particular room or living scene. You can also control your zigbee devices through Tuya APP, including smart sockets, smart plugs, smart switches, smart led light, etc. to create the home atmosphere you like.