Sharp® EL 1801V Two Color Printing Calculator, Black Red Print, 2.1 Lines Sec Glass Window Chemicals Its 4 different positioning angles Its 4 different positioning angles allow the unit to dry carpets ensuring years of reliable use Prints positive numbers in black and negative numbers in red 0 mm Display Notation: Numeric Display Types: Fluorescent Double Zero Key: Yes Equation Editor: No Fraction Calculations: No Fraction Decimal Conversions: No Global Product Type: Calculators Printing Grand Total Key: Yes Hyperbolic Functions: No Hypothesis Testing: No Interest Rate Conversion: No Item Count Function: Yes Linear Regression: No Loan Calculation: No Logical (Boolean) Operations: No Markup Down Key: No Matrices: No Memory: 4 Key Metric Conversion: No Number of Display Digits [Nom]: 12 Percent Add On Discount: No Percent Key(s): Yes Polar Rectangular Conversion: No Post Consumer Recycled Content Percent [Nom]: 0 % Power Source(s): AC Pre Consumer Recycled Content Percent [Nom]: 0 % Print Color(s): Black Print Color(s): Red Print Speed (Lines per Second) [Nom]: 2