Refractometer » Specific Gravity

Master refractometry without the fluff. Learn what a refractometer measures, the difference between digital and optical, how to use ATC correctly, and a repeatable workflow for reading, converting Brix to SG, and calibrating with water or certified standards—across lab and field use.

Understand how refractometers convert light into Brix or refractive index, then apply step-by-step methods for analog and digital devices. Learn calibration, ATC, and troubleshooting—plus examples across agriculture, food, automotive, and environmental work.