Calfax 899S

The Calfax 899S is a scientific calculator with algebraic logic. It has an LED (light-emitting diode) display, typical of calculators of this era. The power source is PP3 9V.

Facts at a glance:

Feature Value
Type: Scientific
Logic: Algebraic
Display type: LED
Length: 140mm
Width: 77mm
Thickness: 35mm
Power Source: PP3 9V
Year introduced: 1975

See other calculators by Calfax