Works in and converts between feet, feet-inch, fractions, decimal feet, yards and full metric. Ideal for contractors, builders, remodelers, framers, and other pros. Quick solutions for right angles, rafters (common, hip valley and jack), rake walls, stairs, weight/volume, materials conversions, circular solutions and full dimensional conversions. Works directly in: Volts, Amps, Volt-Amps, Watts, kVA, kW, PF%, EFF% & DC resistance. Many new and enhanced features, including back space key, footing, block, roof and column keys. New protective hard case. Spanish User''s Guide available upon request. Users Guide, Pocket Reference Guide, batteries included.