Handheld Barcode Scanners: 1D, 2D and Wireless

1D laser or 2D imager: what codes will you read?

Linear 1D scanners, whether laser or CCD, read the classic striped codes on retail packs and shelf labels. A 2D imager reads those too, plus QR and Data Matrix codes, and can capture a code displayed on a phone screen, which many laser guns cannot. Imagers have no moving parts, so they usually take knocks better. If your labels are damaged, tiny or glossy, 2D is the safer pick. If you only scan clean, printed 1D labels at a counter, a corded 1D scanner remains perfectly adequate.

Interface and cordless range: matching the host

The interface decides how the scanner talks to your system. USB, often acting as a keyboard so the code types into any field, is the simple choice. RS-232 serial and the IBM interfaces listed on some units suit older point-of-sale terminals. Cordless models use Bluetooth or a proprietary radio link with a base station, so check the working range, battery life and whether the cradle also charges. Presentation scanners sit on the counter and read items swept past, which suits high-volume checkout better than a handheld.

Questions about Handheld Barcode Scanners: 1D, 2D and Wireless

Will a barcode scanner work without special software?

Usually yes. In USB keyboard mode the scanner types the code like a keyboard, so it works in any text field. Serial units and some cordless setups need configuration, which scanning a setup barcode from the manual often does.

Can I read QR codes with a basic laser scanner?

Not usually. Laser and linear scanners read 1D barcodes only. QR and Data Matrix codes need a 2D imager, and the listing should mention 2D or imager in the scanning technology.

Corded or cordless?

Corded scanners never run flat and are the simplest to keep working, which suits a fixed counter. Cordless models help in aisles and stockrooms, but the battery, base-station range and pairing add things to maintain.