Refractometer is an close optical instrument. Through to providing with a direct reading of the scales, we can easily to know the contraction or refractive index of liquids or the refractive index of a mineral stone. It is designed for testing the concentration of many kinds of solution listed as following: juices, beverages, honey, oechsle, salt water, brine, vital fluid, alcohol and grape, cleaning fluid, battery fluid, antifreeze and industrial fluids and milk etc..We have the traditional hand held refractometers, abbe refractometers, portable digital refractometers and bench type of digital refractometers. 35pcs/carton
