The Abbe Refractometer (Manual) is a precision optical instrument designed to measure the refractive index and concentration of liquids, viscous substances, and transparent solids. It is widely used in laboratories, research institutions, food processing units, pharmaceutical industries, chemical industries, and educational institutions. Operating on the principle of light refraction, the instrument allows the user to manually adjust the control knob and observe readings through the optical eyepiece. It provides highly accurate and repeatable measurements for substances such as sugar solutions, oils, chemicals, solvents, and pharmaceutical samples.

The instrument features a temperature-controlled prism system to ensure reliable measurements, making it ideal for quality control, research, and analytical applications.