[Sound and Light Alarm] When there is a water leak in some places like kitchen, bathroom, the water sensor can detect water and immediately trigger a real-time sound and light alarm to warn you.[2.4G Wi-Fi] The flood detector only supports this wireless type: 2.4GHz Wi-Fi. For 5GHz router users, please choose the 2.4GHz node. 5G router usually has 2.4G and 5G nodes.[Widely used] Used to monitor water leaks, e.g. sink leak, central air conditioner leak, washing machine pipe leak, water heater leak, hot water recirculation pump leak and other water-prone areas.[Easy to use] The flood detector does not require any hub or subscription service. Designed to connect to your Wi-Fi network, simply download the Smart Life or Tuya Smart app from the App Store or Google Play. This app can support multiple smart home products with different protocols. From the app, you will receive instant notifications of any water leaks.