Introducing the all-new Refractix™ Universal Digital Refractometer, the next generation refractometer. All the features you asked for built on the laboratory accuracy, reliability, and ease-of-use of the AR200 Digital Refractometer that you know and trust. Refractix offers 50 pre-loaded measurement scales that meet the needs of food, beverage, beer, wine, chemical, veterinary, and automobile service industries. Refractix also contains additional memory to store hundreds more measurement scales that can be programmed by you. Refractix is truly the universal refractometer for all. Hundreds of scales, thousands of applications! AC Power and Rechargeable Battery. 1.3300 to 1.5600 Refractive Index, 0.0 to 85.0g/100g Brix Range. Warranty: 2 years.Electrical requirements: 3.6V Li-Ion Rechargeable Battery and AC Power Supply with USB-C Cable.