Ultrasonic Level Gauge for automatic control of container water level systems. It monitors liquid levels in containers such as boxes and tanks, enabling automatic management. Easy to install and simple to use. Solar charging system: The included solar panel provides power and charges the rechargeable battery. It uses nickel hydrogen rechargeable batteries and supports replacement after a certain number of cycles, reducing battery replacement costs. For results, install the solar panel on the sunny side; when illuminated, it powers the unit and charges the battery. Versatile installation options: The device can stand on a desk or be mounted on a wall, offering flexible installation to suit different environments and user preferences. Comprehensive monitoring: Equipped with a water level sensor, it tracks minimum and maximum liquid levels and supports /low level and empty tank alarms. This keeps you informed about tank status and helps prevent overflows and optimize water management. Use scenario 1: Remote irrigation or storage tanks where mains power is unavailable, benefiting from solar charging and autonomous level monitoring. Use scenario 2: Industrial or commercial containers with space constraints, suitable for desk placement or wall mounting to fit the site layout. Use scenario 3: Domestic rainwater harvesting or livestock watering tanks, providing alerts for low or empty levels to maintain steady supply.