User's Manual

Scanning Distance
The optimal scanning distance varies depending on the bar code size,
symbology, label media, W-N Ratio, and scan angle. In general, the
CRS can successfully scan 2.2 to 30+ inches from the bar code.
The larger the bar code, the further away you should position the
scanner.
The tighter the bars of the bar code, the closer you should position the
scanner.
CHAPTER 1: INTRODUCTION 9