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0-100% Salinity Refractometer Handheld Salinometer Sea Water Salt Concentration Tester Meter with Automatic Temperature…

$18.66
Make sure this fits by entering your model number. Best Material: This salinity refractometer is made of Aluminum construction is lightweight, wear resistant and durable Best Material: This salinity refractometer is made of Aluminum construction is lightweight, wear resistant and durable

Haofy Pet Clinical Refractometer Dog Cat Refractometer for Measuring Serum Protein&Urine Specific Gravity

$22.09
Make sure this fits by entering your model number. Pet Measuring Instrument: help to measure pet's urine specific gravity and serum protein. Measuring Range: Urine specific gravity (dogs and cats): 1.000-1.060sg; Serum protein: 2-14g/dl.