The Refractometer is a must have for all marine hobbyists.
Correct salinity is crucial for the survival and health of your fish and corals.
This high quality refractometer is extremely accurate and easy to use and calibrate.
Calibration is simply done with a few drops of distilled water.
This model also feature ATC (automatic temperature compensation).
Automatic Temperature Compensation
Range from 0-100 ppt and 1.000 to 1.070 specific gravity
Adjustable focus eyepiece
Calibration Screw Driver