It is developed for working with sugar related liquids (fruit juice, soft-drinks, wine, honey), help monitor to control sugar concentrations in foods and beverages. Checking the ripeness of fruit in the field, verifying product quality after harvesting or controlling concentrations during processing and packaging, refractometers provide critical information to ensure product quality. And the model RHB-10, RHB-18 and RHB-32 are also commonly used for controlling the concentration of various industrial fluids (cutting lubricants and flux rinsing compounds).