A level gauge is a device used to measure the level of liquids or bulk materials in tanks, vessels, or silos. It provides a visual indication of the level of the substance being measured and can be used to ensure that the proper level is maintained for safe and efficient operations. A level gauge may use a variety of methods to measure the level, such as a sight glass, float, or pressure sensor. Depending on the application, level gauges may also incorporate alarms, switches, or other features to indicate when a certain level has been reached or to control the filling or emptying of the container. Level gauges are essential tools in industries such as oil and gas, chemical processing, water treatment, and food and beverage production.