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10-15 , , Unit Per Day
Asia, Australia, Central America, North America, South America, Eastern Europe, Western Europe, Middle East, Africa
A refractometer is an optical instrument that measures the refractive index of a substance, typically a liquid, to determine its concentration or purity. Refractive index is a measure of how much light is bent, or refracted, as it passes through a substance.Refractometers are commonly used in industries such as food and beverage, pharmaceuticals, and automotive to measure the concentration of sugar, salt, oil, and other substances in liquids. They are also used in scientific research to measure the refractive index of materials.