HT312ATC: 1. Measuring Ranges: a) Serum Protein : 0 - 12g/dl b) Specific Gravity : 1.000 - 1.050sg c) Refractive Index: 1.330ND - 1.360ND 2. Division: a) Serum Protein : 0.2g/dl b) Specific Gravity : 0.002sg c) Refractive Index: 0.0005 ND 3. Accuracy: a) Serum Protein : +/-0.2g/dl b) Specific Gravity : +/-0.005sg c) Refractive Index: +/-0.0005 ND 4. Automatic Temperature Compensation (ATC) 10~30 C 5. Size : 30 X 40 X 170mm 6. Weight: 205g