Refractometer with ATC
Having an accurate measure of an aquariums salinity or specific gravity is essential to every marine enthusiast. Our Refractometer is the fastest, easiest, and most accurate way to know. Simply add a drop of your system water to the lens, close the cover, and look through the adjustable focus eye-piece to read the clearly marked value across a simple scale. Far more accurate than dip and read style hydrometers and easier to use than floating hydrometers.
