Decode Distances
Decode Distances

Decode Distances

The table lists the typical distances for selected bar code densities. The minimum element width (or “symbol density”) is the width in mils of the narrowest element (bar or space) in the symbol.
SE4100 Decode Distances
Bar Code Type
Near Distance
Far Distance
Typical
Typical
5 milCode 39
2.4 in / 6.1 cm
9.5 in / 24.1 cm
5 milCode 128
2.8 in / 7.1 cm
9.0 in / 22.9 cm
6.7 milPDF417
2.4 in / 6.1 cm
8.0 in / 20.3 cm
100% UPCA
1.8 in / 4.6 cm*
19.5 in / 49.5 cm
10 milData Matrix
2.9 in / 7.4 cm
8.5 in / 21.6 cm
20 milCode 39
2.5 in / 5.1 cm
26.0 in / 66.0 cm
15 milQR Code
1.2 in / 3.1 cm
11.5 in / 29.2 cm
20 milQR Code
1.2 in / 3.1 cm
14.0 in / 35.6 cm
*Limited by width of barcode in field of view.
Photographic quality barcode at 18° tilt pitch angle under 30 fcd ambient illumination
UPC, 20mil code 39, 15mil QR, and 20mil QR near distances correspond to the barcode located in the overlapping region of illumination and imaging fields of view.