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Casio 801-MR

The Casio 801-MR is an arithmetic calculator with 8 digits precision and algebraic logic. It has 8 functions, 23 keys, and a VFD (vacuum fluorescent) display. The power source is 4xAA. Note: 16 digits internal precision

Facts at a glance:

FeatureValue
TypeArithmetic
Functions8
Keys23
Precision8
LogicAlgebraic
Display typeVFD
Length154mm
Width116mm
Thickness38mm
Weight280g
Power Consumption0.300000W
Power Source4xAA
Year introduced1975
Year discontinued1975

Replacements:

If you have a Casio 801-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