The refractometer is an optical instrument that uses refractive index measurement to determine the salinity of natural and artificial seawater, seawater or brackish intermediates.
The seawater refractometer offers exceptional accuracy because it uses a specific algorithm developed to measure the absolute salinity of seawater at a temperature of 25°C.
The Aqua Medic LED Refractometer is a precision optical instrument for the exact determination of the amount of salt in saltwater aquariums . A few drops allow the determination of the salt concentration in a few seconds. It can be read either as absolute quantity of salt (salinity) in ‰, ppt or as density.