The DataMan 100 QL and 200 QL fixed-mount readers from Cognex offer reliable 1-D bar-code reading performance. The readers are easily field-upgraded to add 2-D data matrix and QR code reading capability if application needs change. The devices are roughly the same price as laser scanners yet provide significantly more reliable code reading performance, according to the company. They read codes that laser bar-code scanners fail to read, such as marks that are low in contrast, damaged, or distorted by severe perspective. The readers feature the 1DMax code reading algorithm, which also handles quiet zone violations that can occur when codes are printed close to a label’s edge.