Attributes . Depth of Field: Non-reflective labels from 9 to 490 cm / 0.3 to 16.0 ft, depending on bar code density; Reflective labels: up to 1509 cm / 49.5 ft. Near range determined by degree of reflectivity and width of the bar code. All ranges dependent on bar code size and density; Scanning Rate: 31-41 scans/sec. Minimum Resolution: 0.20 mm / 7.5 mils . Names