Aqua Medic Salinity 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, our Refractometer is a must have for every marine aquarium hobbyist.
This high-quality measurement device reads in both salinity and specific gravity values that are temperature compensated and can be easily calibrated with a drop of freshwater.
Each Reefractometer comes in a padded case, complete with a fine-adjustment tool, sample pipette, and full instructions.
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Stays calibrated Review by Dog Hair
After trials and tribulations with hydrometer I finally broke down and purchased this refractometer. Purchased this brand on recommendation of commercial supplier of livestock I purchased on line (asked them which brand they used since they didn't sell item). It has been a while since I bought a more useful product. Following recommendations of manufacturer and various forums I have checked the calibration before each use and have not have to recalibrate the unit yet. It appears to be of the standard design so is easy to use. It is a little more expensive than some of the bargain units but I think I got what I paid for if you know what I mean. (Posted on 11/2/2010)