Watson Label Products
About Us Watson News Tour Our Facility Home
ISO Certification Trade Shows Contact Watson File Upload

Bar Code 128

New Products
Industrial Labels
Automotive Labels
Healthcare Labels
Security Labels
Prototype Packaging
Electronics Labels
Printed Circuit Board Labels
Warehouse Labels
Library Labels and
Patron Cards

Lenticular Products
General Label Information
Bar Code Symbologies
Code 39
Code 49
Code 93
Code 128
Interleaved 2 of 5
Thermal Transfer Supplies
Credit Application


128 data characters plus 4
non-data function characters
Code 128 is an alphanumeric symbology which is variable in length with two error-checking alternatives. The first is an individual character level using character self-checking parity. The second is a complete message using the calculated, end of message, check digit. It is available in three versions: Version A, alpha (uppercase only) and numeric; Version B, alphanumeric (both upper and lowercase alpha symbols) and full ASCII capability; and Version C, a numeric-only version which allows the highest character density possible with this code. The use of a "shift" character in this symbology allows for a switch between the three versions at any time within a given symbol. Each data character in Code 128 is 11 modules arranged as 3 bars and 3 spaces of varying widths. As with Code 93, Code 128 uses function codes to aid the data flow via software but has a much greater density. Code 128 is the most compact, complete alphanumeric symbology available.

Applications For Code 128:

  • Department stores and retail point of sale
  • With its flexibility, this code is gaining popularity in industrial applications.
  Watson Label Products - 10616 Trenton Ave. - St. Louis, MO 63132 USA
  Resources | Disclaimer | Credit Application
Site Design & Optimization by Captiva Marketing, St. Louis