calculator.org

the calculator home page

Sharp EL-509D

The Sharp EL-509D is a scientific calculator with 10 digits precision and algebraic logic. It has 58 functions, 44 keys, and an LCD (liquid crystal) display. The power source is 2x1.5V cell.

Facts at a glance:

FeatureValue
TypeScientific
Functions58
Keys44
Precision10
LogicAlgebraic
Display typeLCD
Length143mm
Width76mm
Thickness9mm
Power Source2x1.5V cell
Year introduced1985

Replacements:

If you have a Sharp EL-509D that is no longer working, you can first try replacing the 2x1.5V 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 Sharp