Pay in 4 interest-free payments of $11.25 Learn more
Ships within 48 hours · Estimated delivery Jul 26 - Jul 31
1 mL or more Power Supply 9V Battery Dimensions 68 × 170 × 46 mm Weight 285 g How It Works
Calibrate once every 30 tests OR 3 months to ensure proper accuracy with the 10% Brix Solution
Refractometers have been proven time and time again to be more accurate than hydrometers or reagent test strips for testing urine
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FREE replacement parts - no matter where you live in the World
SEAfractometer True Natural Seawater Salinity Refractometer Reef Aquarium 0-40pp glycerin in water 1 mL or more PowerSEAfractometer NATURAL SEA WATER REFRACTOMETER FROM NATIONAL INDUSTRIAL SUPPLY A POWERFUL AND WELL BUILT REFRACTOMETER, AT AN UNBEATABLE PRICE! PERFECT FOR ALL MARINE ENVIRONMENTS (EVEN BRACKISH)! SEAfractometer *NOW a True Natural Seawater with a 0 40PPT range! * Perfect for brackish environments, as well as normal marine environments! * Optimized for the temperature of most marine tanks 25'C! * Incomparable QUALITY, ACCRUACY, SCALE RANGE,