calculator.org

the calculator home page

Aries AR-420

The Aries AR-420 is an arithmetic calculator with algebraic logic. It has an LED (light-emitting diode) display, typical of calculators of this era. The power source is Sealed battery pack. Note: Membrane keypad. Available in kit form.

Facts at a glance:

FeatureValue
TypeArithmetic
LogicAlgebraic
Display typeLED
Length121mm
Width76mm
Power SourceSealed battery pack
Year introduced1973

Replacements:

If you have an Aries AR-420 that is no longer working, you can consider replacing the calculator with a modern equivalent. We suggest the following current models as possible replacements:

See other calculators by Aries