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CDE Tabulations
Bar Code Scanners
CDE Tabulations Home

The pen (wand) type bar code scanners work best for tabulations.  These connect to the keyboard port  or USB port of the computer.  USB to PS/2 converters can be used for computer without PS/2 ports. 

Scanners are available from $100-300.  We have had good luck with the Unitech MS120-3PS2 scanner (below).  These are available from PC Connection and CDW for under a $100. 

Unitech MS120

The Unitech MS-100-4 is a USB interface scanner that has also been tested.  The USB interface is better for use with modern laptops and desktops that don't have PS/2 interfaces.  (About $80.) The Model MS-100 is a plastic body.

Unitech MS100

Any pen type scanner that can read and decode Code 39 should work.

Other Scanners:

Wasp 633808142407

Notes on using scanners:

When using a USB to PS/2 adapter the bar code may not reading properly (missing characters).  This may corrected by setting the inter-character delay,  Use the shortest value that allows the reader to work properly (ex. 3 ms).  This appears the caused by transmitting the code to fast.  The delay causes a pause between characters.  NOTE:  ALL USB to PS/2 adapters are not the same.  Some work and some don't with scanners.  TEST prior to the contest.


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