12-digit calculator features antimicrobial protection to reduce growth of microbes and bacteria that may cause odors or discoloration. Prints 2.7 lines per second in two colors and prints time and date. Offers a liquid crystal display (LCD) with 19mm height, and built-in metal paper arm. Functions include cost/sell/margin; time/date; tax +/- keys; grand total; sigma switch; delta percent; percent; change sign; four-key memory; and date/nonadd. Weighs 1.2 lb. AC/DC powered. Includes AC adapter. Uses four AA batteries (sold separately).