Refractometer is precision optical instrument that operates on the principle- as the concentration or density of a solution increases, its refractive index changes proportionately. The refractive ...
Sper Scientific 300006 Salt Refractometer 0 ~ 28%. Measures salt content in sea water and pickling-brines. If calibrated for sodium chloride, it can be used for calcium chloride, barium cobalt ...
Regularly testing the water quality in your saltwater aquarium is crucial for the well-being of your fish and coral.
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