UHF, English abbreviation for Ultra High Frequency, is an automatic wireless communication technology that enables data reading over long distances. RFID is an automatic identification technology based on so-called RFID tags. RFID tags are divided into two main categories passive tags: devices that do not have their own power source active tags: devices that have their own power source. passive tags function primarily on three frequencies: low frequency (LF), high frequency and Ultra high frequency (UHF). UHF tags. They are successfully used in the world of logistics and retail because they can read data over long distances of around 5 to 15 meters. The use of RFID tags in UHF technology in logistics and warehousing in the industrial sector occurs through the use of portable readers that read over long distances.