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Casio 803-MR

The Casio 803-MR is an arithmetic calculator with algebraic logic. It has 6 functions, 23 keys, and a VFD (vacuum fluorescent) display. The power source is 4xAA.

Facts at a glance:

FeatureValue
TypeArithmetic
Functions6
Keys23
LogicAlgebraic
Display typeVFD
Length160mm
Width99mm
Thickness33mm
Power Source4xAA
Year introduced1975

Replacements:

If you have a Casio 803-MR 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 models as possible replacements:

See other calculators by Casio