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Casio HR-7

The Casio HR-7 is an arithmetic calculator with 10 digits precision and algebraic logic. It has 6 functions, 28 keys, and an LCD (liquid crystal) display. The power source is 4xAA. The calculator was manufactured in Japan.

Facts at a glance:

FeatureValue
TypeArithmetic
Functions6
Keys28
Precision10
LogicAlgebraic
Display typeLCD
PrinterYes
Length181mm
Width85mm
Thickness34mm
Power Consumption2.000000W
Power Source4xAA
CountryJapan
Year introduced1984
Year discontinued1985

Replacements:

If you have a Casio HR-7 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