Feature 1Easy Calibration: The refractometer is easy to use and calibrate, just 1 drop of sample, can easily test Brix, can measure in three seconds. 2High Accuracy: Digital refractometer is a precise instrument with high measurement accuracy and quick access to accurate readings. 3Widely Applicable: Sugar meter is suitable for the sugar content of pears, watermelons, grapes, cantaloupe, citrus and other fruits. 4Lightweight And Portable: Hand held sugar refractometer, compact structure, easy to measure, light and delicate, easy to carry. 5Professional: Brix refractometer is designed for testing sugar content and specific gravity, ideal for home winemaking, farming, gardening and more.Item Type: RefractometerMaterial: ABSBattery Parameters: 1 x AAA Battery (Not Included)Temperature Measurement Range: 0-40Refractive Index: 1.3330-1.5177Weight: Approx. 307g/10.8ozMeasuring Range: Pear, Watermelon, Grape, Cantaloupe, Citrus and Other Fruits .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 Storage Box1 x Dropper1 x Screwdriver1 xRefractometer (Battery Not Included)1 x Chinese and English Manual