Feature:1. Function: The digital refraction instrument is used to measure the sugar content and specific gravity in urine. It can accurately determine the concentration and specific gravity of urine and serum protein2. Portable: Sugar content tester is easy to use, strong design, compact volume, light weight, easy to carry3. Automatic Temperature Compensation: With automatic temperature compensation function, making fast results4. Material: Strong and durable, easy to use and transport, mainly made of copper, light weight, not easy to damage5. Suitable : Digital refractometers are ideal for parents and the elderly in their families. It can help them learn about serum proteins and test for sugar content in urineSpecification:Item Type: Clinical RefractometerProduct Size: Approx. 17x4x4cm / 6.7x1.6x1.6inWeight: Approx. 287g / 10.1ozMaterial: Copper0~12G/DI (Serum Protein)1.000~1.050SG (Urine Specific Gravity)1.3330~1.3600ND (Refractive Index)Minimum Scale Value: 0.2 G/DI 0.002SG 0.0005ND.Package List:1 x Refractometer1 x Cloth1 x Instruction Manual1 x Straw1 x Screwdriver1 x Plastic Box