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Radio Shack EC-4020

The Radio Shack EC-4020 is a programmable calculator with 12 digits precision and algebraic logic. It has 44 keys, and an LCD (liquid crystal) display. The power source is 2x3V cell. Note: Casio fx-4000P

Facts at a glance:

FeatureValue
TypeProgrammable
Keys44
Precision12
LogicAlgebraic
Display typeLCD
Length133mm
Width72mm
Thickness10mm
Power Consumption0.010000W
Power Source2x3V cell
Year introduced1985
Year discontinued1988

Replacements:

If you have a Radio Shack EC-4020 that is no longer working, you can first try replacing the 2x3V cell 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 Radio Shack