Hydrometer

Why does BRS recommend this? If you have been using a hydrometer and have never tried a refractometer then you should really invest in one.  They use much less water, and can easily be calibrated for accurate repeatable readings.  For the most accurate readings  you will want to calibrate the…

The new Milwaukee MA887 Seawater Digital Refractometer encompasses 3 different types of user selected scales for the measurement of seawater providing for a much more precise evaluation. Each scale is temperature compensated. Milwaukee Digital Seawater Refractometer Manual

The American Marine PINPOINT Salinity Monitor will immediately give an accurate measure of salt levels in any aquarium. The reading is fully temperature compensated. With proper care this PINPOINT Salinity monitor should last a lifetime.

…refractometer is only as reliable as your calibration solution! Calibrating your refractometer only takes a minute and is a critical step in ensuring your tanks saltwater is mixed correctly. 1.0264sg  |  35ppt  |  53µS Two Sizes Available 60mL - great for refractometers 250mL - ideal for hydrometers

Protective hardshell case from Milwaukee Instruments. Store your refractometer or photometer

PINPOINT Salinity Calibration Fluid is 53.0 mS standardized fluid for calibrating PINPOINT Salinity Monitors as well as refractometers. PINPOINT Salinity Calibration Fluid calibrates to sg 1.026 or 35ppt. PINPOINT Salinity Calibration Fluid calibrates to sg 1.026 or 35ppt. 2.2 FL OZ (65mL)