This is a new series consists of various models corresponding to various kind of fruits, including prune, cherry, tomato, grape, apple, peach, asian pear, strawberry, mango, corn, persimmon, kiwi, blueberry, melon & more will be launched soon.  They measures the sweetness of fruit juice by just attaching measurimg ports to fruit surfaces without cutting.  The whole measurement process is much faster, easier & less waste generated when compared to using refractometers.  It is possible for periodic measurement during fruit growth to monitor quality.