HH492 User Guide 81
UPC-E0 Addenda
This selection adds 2 or 5 digits to the end of all scanned UPC-E data. Default = Off 
for both 2 Digit and 5 Digit Addenda.
UPC-E1
Most U.P.C. barcodes lead with the 0 number system. For these codes, use UPC-E0 
(page 79). If you need to read codes that lead with the 1 number system, use the 
UPC-E1 On selection. Default = Off.