‎Urine SG - Serum Protein - Refractive Index

Make sure this fits by entering your model number. Human clinical refractometer 3-in-1 testing of Serum protein, Urine specific gravity, and Refractive index MEASURING RANGE: Serum protein: 0 ~ 12 g/100 ml ; Urine specific gravity: 1.000 ~ 1.050 ; Refractive index: 1.333 ~1.360 RI