A density meter is a scientific instrument used to measure the density of a substance. Density is defined as the mass of an object per unit volume and is typically expressed in units such as grams per cubic centimeter (g/cm³) or kilograms per cubic meter (kg/m³). Density meters are essential tools in various industries and scientific fields, as they provide valuable information about the composition, purity, and quality of materials. If you need to measure the density of a liquid sample, a density meter is the most accurate and reliable instrument to use. Here, we will explore the principles behind density measurement, the different types of density meters, and their applications.