Multifunctional Design: Unlike traditional refractometers, with digital refractometer you can measure the sugar content of fruits, juices and liquids, and salinity, brewing, urea, easier and faster. High Precision: Our sugar brix refractometer delivers high precision measurements within seconds, featuring test range of 55%, precision +/- 0.01%, and resolution of +/-0.05%. Digital OLED Display: refractometer features a OLED display that ensures easy-reading but also indicates other useful information such as brix levels, battery level, temperature or refraction index. User-Friendly Design: The brix meter refractometer is compact and easy to operate but also intuitive,it allows you to save and share the data on your app. The rechargeable design ensures fast charging in 1 hour that will last up to 30 (not continuous use). Wide Range of Applications: The digital refractometer is IP67 waterproof, drop-resistant and can be used by producers, employees or analysts to test the sugar level of fruits, foods, liquids, beverages, and vegetables, salinity, brewing, urea.TIPS: kindly make that it is calibrated before measurement. Material:ABS colour: As shown Package Contents: 1 x coffee refractometer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.