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Casio PRO fx-1

The Casio PRO fx-1 is a programmable calculator with 10 digits precision and algebraic logic. It has 43 keys, and a VFD (vacuum fluorescent) display. The power source is 4xAA. Note: Memory : 127 keystrokes, 10 registers. Manually operated magnetic card unit.

Facts at a glance:

FeatureValue
TypeProgrammable
Keys43
Precision10
LogicAlgebraic
Display typeVFD
Length197mm
Width115mm
Thickness37mm
Weight490g
Power Source4xAA
Year introduced1975

Replacements:

If you have a Casio PRO fx-1 that is no longer working, you can first try replacing the 4xAA batteries. If that doesn't solve the problem, then you can consider replacing the calculator with a modern equivalent. We suggest the following current model as a replacement:

See other calculators by Casio