Feature 1MAIN APPLICATIONS: Refractometer is designed to test the sugar content and specific gravity of liquids in a convenient handheld format. 2ACCURATE MEASUREMENT: Medical refractometer is capable of accurately measuring urine concentration specific gravity, serum proteins. 3SIMPLE TESTING PROCESS: Refractometer's simple testing process and automatic temperature compensation make quick results easy. 4EASY TO CARRY: Medical refractometer is easy to use, with a robust design, compact size and light weight, making it easy to carry and update. 5ROBUST AND DURABLE: The main part of brix meter refractometer is made of aluminum, which is strong and durable and not easy to damage.Item Type: Brix RefractometerMaterial: AluminumProduct Size: Approx. 17x4x4cm / 6.7x1.6x1.6inUse: Handheld Refractometer0-12g/Dl (Serum Protein)1.000-1.050sg (Urine Specific Gravity)1.3330-1.3600ND (Refractive Index)Minimum Scale Value0.2g/Dl0.002sg0.0005NDGross Weight: 217g/7.7oz .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x BrixRefractometer1 x Cloth1 x Instruction Book1 x Straw1 x Screwdriver1 x Plastic BoxNotePlease allow some error due to manual measurement.