This
refractometer features Automatic Temperature Compensation (ATC),
which makes manual temperature corrections unnecessary. Double
scale in parts per thousand and specific gravity. Measures
salt content in sea water, aquariums, breeding ponds, or
pickling-brines. While the scale is calibrated for sodium
chloride, it can also be used for calcium chloride, barium cobalt,
magnesium, cesium, potassium, sodium chloride, cupric sulfate,
potassium iodide, citric acid, and acetic acid (vinegar), when
tested against a known standard. Comes with a hard carrying
case and calibration tool.
