Sharp EL-1801V Two-Color Printing Calculator, Black/Red Print, 2.1 Lines/SecSharp EL 1801V Two Color Printing Calculator, Black Red Print, 2. 1 Lines Sec Item #SHREL1801V Built in Microban antimicrobial protection inhibits the growth of damaging bacteria. Prints positive numbers in black and negative numbers in red. Built in Microban antimicrobial protection inhibits the growth of damaging bacteria. Prints positive numbers in black and negative numbers in red. 00 key saves time. Power Sources: AC Display Notation: Numeric