Water level sensor Wi-Fi is a device that provides real-time synchronous feedback of remote output status and water level. It can operate independently without WIFI and has the water level control function of a single machine. It has two models, one with a 220V power input and the other with a 12VDC power input. It has a remote upper and lower water level alarm APP push function and can display current water level, start water level, stop water level, upper and lower alarm water level. Configuration process involves installing the Tuya Smart app on Android or Apple devices and creating an account. Note that the alarm can only be realized when the device and mobile phone are online.