>
>THey are barcode scanners.  And yes, the user can try again if they don't
>work the first time, unless he gives up and flings them across the room at
>the bather.  At 60% accuracy I give that a 50-50 chance of happening.
>(how's that for statistics huh?)

How confident are you that the test targets are valid?
PSC makes validators, but they are a bit pricey.

Are these hand scanned or laser/video/ccd?
Clean optics on both units?

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