Fauna Marin Salinity Reference 100ml

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Fauna Marin Salinity Reference 100ml Pre-measured refractometer calibration solution takes the guesswork out of properly calibrating your instrument - with no need for expensive or unreliable measuring equipment. A refractometer is essential to the saltwater hobbyist for success. Maintain its accuracy by recalibrating regularly. Adjust calibration mechanism to read to one of the following specifications: 35 ppt1.0264 Specific Gravity1.3394 Refractive Index53 uS/cm at 25 deg C Show more