An automatic colorimeter is a device used to measure the concentration of a substance in a solution by analyzing the intensity of color formed during a chemical reaction. It automates the process of colorimetric analysis, which traditionally involves comparing the color of a sample to standard color solutions or a color chart.Automatic colorimeters are commonly used in various fields such as chemistry, biochemistry, environmental science, and clinical diagnostics for quantitative analysis of substances like ions, proteins, enzymes, and pollutants.