Refractometer is a scientific instrument that is used to measure the refractive index of a liquid or solid sample. These instruments are used widely in research laboratories, universities, beverage industries, and gemologists. We carry the most user-friendly, high-performance, portable refractometers. These are manufactured to ISO 9001 for design, production and servicing. Refractometers measure solutions, quality control, and specific gravity. With our choices of Abbe, Handheld Analog, and Portable Digital Refractometers, The Lab Depot has everything you need for your lab and more!