Blood Serum Protein: 0-12g/dl, Urine Specific Gravity: 1.000-1.050sg, Urine Refractive Index: 1.330RI-1.360RI Ade Advanced Optics Clinical refractometer is specially designed for clinical usage and also intended for Veterinary. It provides veterinarians and clinicians with quick and accurate indication of vital fluid's levels. The 3-in-1 scale design measures Urine Specific Gravity (SG), Total Serum Protein (SP) and Refractive Index (RI) in the same time. Features Sturdy and light weighted Aluminum body High quality and accurate testing result ATC Compensation Range (i.e. Built-in Automatic Temperature Compensation System) from 10 to 30C Easy and very convenient to use Comes with a case, calibration screwdriver, pipette and users guide Min.Divisions/Accuracy: Blood Serum Protein: 0.2g/dl Urine Specific Gravity: 0.005sg, Urine Refractive Index: 0.0005RI Additional Details ------------------------------ Package quantity: 1