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[2],[7] Bar code technology is currently the most for the labeling of products that allows unique identification of products and accelerates their flow from the manufacturer to the end customer. This technology has only one flaw, and that is the necessity for access product to its bar code could be read. Radio frequency identification (RFID) was conceived as a simple replacement of bar codes where the product identification carried out wirelessly via radio waves. Using such a system removes certain limitations that exist when using bar codes, such as need for immediate visibility of the code by the reader, a small distance at which it can be read, problems with wear and tear or damage the label with barcode labels, slow at reading larger quantities of products, and the like.

RFID stands for radio frequency identification. It is a technology that uses radio frequency waves or changing magnetic field for exchanging information between the portable device/memory and computers. The basic components of an RFID system are the transponder and reader/writer. Transponder chip that is transferable in its memory contains data, and the reader device at a distance can read data stored in the memory transponder. Usually it's a unique identification number, in addition may contain some other data. The reader can read forwarded to other systems, usually to a microcontroller or computer.