Appendix A - Specifications
62
EA21 Typical Reading Distances (continued)
Symbology
Density
0.38 mm/15 mils
PDF417
0.25 mm/10 mils
0.38 mm/15 mils
The typical reading distances are measured in an office environment
(250 lux).
0"
4"
8"
in
16"
12"
PDF417 10 mils
8"
Data Matrix 10 mils
4"
0"
4"
0.15mm/6 mils
8"
0.25 mm / 10 mils
12"
100% contrast UPC EAN
16"
0
10
20
EA21 Typical Reading Distances
Note: Minimum distances depend on the length of the bar code.
Minimum
Distance
8 cm/3.15 in
7 cm/2.75 in
7 cm/2.75 in
12"
16"
20"
24"
0.5 mm / 20 mils
30
40
50
60
CN50 Mobile Computer User's Manual
Maximum
Distance
35 cm/13.78 in
29 cm/11.42 in
44 cm/17.32 in
28"
32"
40
30
20
10
0
10
20
30
40
cm
70
80