No clear margin required. This complies with the original GS1 standard, but may result in erroneous decoding of the DataBar Limited barcode when scanning some UPS symbols that start with digits 9 and 7.
Automatic Risk Detection. This level of security may result in erroneous decoding of DataBar Limited barcodes when scanning some UPC symbols. The scanner defaults to Level 3, otherwise to level 1.
Security level reflects newly proposed GS1 standard that requires a 5 times trailing clear margin.
Security level extends beyond the standard required by GS1. This level of security requires a five times leading and trailing clear margin.