48GII Programmable Graphing Calculator

48GII Programmable Graphing Calculator Provides reliable, high-level assistance for demanding engineering and surveying applications. Library of 180+ scientific and engineering constants and units. More than 2,300 built-in functions. Structured programming for creating applications. Serial port for transferring files between calculator and PC. IrDA port for sharing data with another HP 48g11 calculator at high speed. Calculator Type: Non-Printing; Calculator Style: Graphing; Power Source(s): 3.0V Lithium Battery;Three AAA Batteries;Display Notation: Engineering;Graphic.