The Portable Human Tri-Scale Clinical Refractometer is designed for fast and accurate measurement of serum protein, urine specific gravity (USG), and refractive index (RI). Ideal for hospitals, clinical laboratories, sports medicine, and healthcare professionals, it provides reliable results with only a few drops of sample. Featuring Automatic Temperature Compensation (ATC), this handheld refractometer ensures accurate readings under various environmental conditions. Compact, durable, and easy to use, it is the perfect tool for routine clinical testing and on-site applications.