👉 The meter fluid, also known as the meter fluid level indicator, is a device used to measure and display the liquid level in various industrial and domestic applications, such as tanks, reservoirs, and water supply systems. It typically consists of a transparent tube or pipe filled with a fluid whose level changes proportionally to the volume of liquid in the container. As the fluid rises or falls, it moves up or down within the tube, providing a visual indication of the liquid's height relative to a set mark or zero point. This simple yet effective mechanism allows operators to monitor fluid levels without needing to open the container, ensuring efficient management and preventing overflows or shortages.