30 KEYS PLU AND 319 INDIRECT PLU EASE-TO-SEE, ( 6 OR 9 ) LARGE DISPLAYDS ( 27.7 mm × 108 mm ) USING SUPER CONTRASTED LCD WITH BACKLIGHT AUTO ZERO TRACKING RS-232 INTERFACE ( BI-DIRECTIONAL SYSTEM ) PLU DATABASE MANAGER FOR WIN 95 & WIN 98 SUPPORT DIFFERENT LANGUAGES PROGRAMMABLE BAR CODE ( EN-8, 13, 39,.. SELECTABLE ) DOUBLE RANGE