Wasp WCS3900 Barcode Scanner The Wasp WCS3900 barcode scanner offers durable construction and ergonomic design for comfortable use. Perfect for office, library, and light retail environments, the WCS3900 easily eliminates time consuming manual data entry. Adding information to a database, spreadsheet or Point-of-Sale (POS) system is efficient and error free - just scan the barcode , and the data is sent instantly to your active application as though it was typed on a keyboard. The WCS3900 is designed for fast, easy installation and connects easily to your PC using the USB port of keyboard wedge (PS/2). The WCS3900 barcode scanner is configured to read most common 1D barcodes, right out of the box - no drivers necessary. The WCS3900 allows you to scan barcodes up to 1" away, with a maximum barcode width of 3.25". The WCS3900 includes a 2-year manufacturer's warranty covering material defects. If you would like to upgrade this coverage, WaspProtect extended service plans cover accidental breakage and can provide coverage beyond the original warranty.