The 3-in-1 Animal Clinical Refractometer is designed for veterinarians, pet clinics, and livestock farms to quickly measure animal health indicators. It accurately tests urine specific gravity (USG) for dogs and cats, as well as serum protein levels, helping evaluate hydration and overall health status. Featuring Automatic Temperature Compensation (ATC), it provides reliable results under different environmental conditions. Compact, lightweight, and easy to use, this refractometer requires only a few drops of sample and delivers fast readings without batteries, making it ideal for both clinical and field applications.