To read a barcode or QR code, a scan-enabled application is required. The device contains the DataWedge Demonstration (DWDemo) app, which allows you to enable the imager, decode the barcode/QR code data, and display barcode content.
The SE55 displays a green dash-dot-dash aimer. The SE4720 displays a red dot aimer. The SE4770 displays a red crosshair aimer.