Price Look-Up (PLU)
Price Look-Up (PLU): Used for retail products sold loose, bunched or in bulk (to identify the different types of fruit, say). As opposed to UPC (Universal Product Codes) for packaged, fixed weight retail items. A PLU code contains 4-5 digits in total. The PLU is entered before an item is weighed to determine a price.
Source: https://cscmp.org/sites/default/files/user_uploads/resources/downloads/glossary-2013.pdf
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