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Citizen SR-I

The Citizen SR-I is a scientific calculator with 8 digits precision and algebraic logic. It has 30 functions, 33 keys, and a VFD (vacuum fluorescent) display. The power source is 2xAA. The calculator was manufactured in Japan. Note: External battery pack

Facts at a glance:

FeatureValue
TypeScientific
Functions30
Keys33
Precision8
LogicAlgebraic
Display typeVFD
Power Source2xAA
CountryJapan
Year introduced1975

Replacements:

If you have a Citizen SR-I that is no longer working, you can first try replacing the 2xAA 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 Citizen