Portion scales are widely used not only in stores but also in public catering facilities for various weight measurements, that is for determining of the weight of a particular product or a group of products. Weighing results appear on the display screen. The use of portion scales does not involve working with large weight goods, thats why they are widely used in the retail trade. Typically, portion scales have light weight and size, that maks it easy to move them. A standard set of functions - summing up, cost calculation, etc. In addition to the usual parameters (accuracy, weight limit, etc.) portion scales can have a number of additional features, for example, the interface connected to a computer or additional software.