GENUINE MONROE 122PDX CALCULATORTitle: Monroe 122PDX Medium Duty 12 Digit Print Display Calculator With The Fastest Printing Speed of 4. 3 Lines Per Second 12 Digit Bright Display Print Medium Duty Body With Fast Printing 2 Color Ribbon Printing, 4. 3 Lines Per Sec 4 Key Independent Memory Sign Change, Auto Constants Percent, Backspace Item Count, Date Non Add Decimal Select, Rounding Markup, Group Grand Total, And More! Lifetime Phone Support 6 Month Limited Warranty 8 x 11 x 2. 8,