Reicherts Rhino VET360 Refractometer quickly and accurately determines urine specific gravity and protein concentration in plasma, serum and peritoneal fluid. The Rhino-rugged handheld refractometer is water resistant, dust proof and shock resistant. The Rhino VET360 uses Automatic Temperature Compensation to provide accurate readings regardless of ambient temperature. The unit automatically corrects all readings back to the Standard Reference Temperature of 68°F (20°C). This provides much greater accuracy than urinometers or reagent strips can offer.