3 in 1 Scale Clinical Refractometer with 10 30C ATC, Serum Protein 0 12g/dl, Urine Specific Gravity 1.000 1.050, Refractive Index 1.333 1.360 RI for Human Use.

TRI-SCALE MEASUREMENT: measure and test urine specific gravity, plasma or serum protein, and refractive index for Human. MEASURING RANGE: Serum protein: 0 ~ 12 g/100 ml ; Urine specific gravity: 1.000 ~ 1.050 ; Refractive index: 1.333 ~ 1.360 RI ATC Compensation Range (Built-in Automatic Temperature Compensation System) from 10~30°C. ALUMINUM BODY MATERIAL: Made of aluminum, Cushioned w/ soft and comfortable non-slip rubberized grip, insulate test solution from body heat.Adjustable focus, clear, large and easy-to-read measurements QUICK MEASURING: Place a few drops of the liquid on the optical part of the refractometer, cover the prism and you will be able to read the result value on the scale.