Laser-Based Barcode Scanners vs. 2D Imagers for Barcode Scanning

A universal advantage of handheld barcode scanners is their ability to move or be moved freely and easily.. Their mobility makes them ideal for inventory applications where you can go to the items being inventoried rather than bring items to the barcode reader. But, there are some disadvantages too. For example, some handheld barcode scanners have limitations in scan distances. In looking at two common barcode reader types, each offers distinct pros and cons.

Laser-Based Barcode Scanners

Laser-based barcode scanners have been around for decades. They usually are made of components including moving mirrors. Laser scanners sweep a laser across a barcode to capture the pattern and decode it.

Generally speaking, laser scanners are better at reading at distances more than two feet, compared to other barcode readers that aren’t so good at it. They are also generally better in low-light situations.

In general, laser scanners can read linear barcodes more efficiently than 2D imagers can.

2D Imagers for Barcodes

2D imaging scanners use a camera and image processing techniques to decode barcodes. In the barcode world, smartphones can be classified as 2D imagers. They are now widely used as barcode readers, in particular for QR codes.