DENSO's Advanced Scan Plus technology gives the AT 20B twice the scanning speed of previous models, increasing operator efficiency. A super-deep scanning field allows smooth close-up and distant operation, regardless of the scanner's position. Using the latest Denso algorithms, the AT 20B can scan poorly printed or otherwise difficult-to-read barcodes. The device also allows trouble-free scanning of wide barcodes, such as the ITF-14 and GS1-128 (EAN-128) codes used for utility and medical bills, and Code 39 on EIAJ labels. The AT 20B has a compact, lightweight and ergonomically shaped design making it easy to hold and aim, while also reducing operator fatigue. An LED guide-light improves the ease of targeting, even when scanning multilevel or very small barcodes. The AT20B is extremely durable, with a shock-absorbing construction that allows it to withstand being dropped onto a concrete floor 6 times from a height of 1.8 meters or 60 times from 1.5 meters. The device also features IP42 dust- and water-resistant protection, as well as a connector-cable locking mechanism that prevents damage to the connector or cable. Other outstanding features of the AT 20B include easy-to-use configuration software and an auto-sense scanning mode. A data-verification function allows verification to be done with a single scanner, while data-editing functions allow simple programming (ADF scripting) for data truncating, sorting and converting. A command-control function enables the scanner to be controlled by a PC for fully automated operation.