Refractometer » Digital Salinity Meter

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.

Master the art of salinity monitoring in marine aquariums with professional digital tools. Learn expert techniques for accurate measurements and maintain the perfect balance for your aquatic life.