Professional heavy duty printing calculator with extra large, fully punctuated, 12 digit fluorescent display, NEW time/date feature continuously displays the current time with the date displayed at the touch of a key, NEW Cost-Sell-Margin keys solves cost-sell-margin problems by entering 2 variables and the third appears, fast 5.0LPS printer, full size commercial keyboard, automatic tax functions, 4 key memory, units price mode, grand total, percent, markup/markdown, delta percent, backspace keys, performs averaging and square root and automatic constants. Uses a 2-color twin spool ribbon or convenient cartridge ribbon. 3 year warranty.