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Keystone 395 exponent 1

The Keystone 395 exponent 1 is an arithmetic calculator with 8 digits precision and algebraic logic. It has 8 functions, 22 keys and Discharge display. The power source is 4xAA sealed.

Facts at a glance:

Type Arithmetic
Functions 8
Keys 22
Precision 8
Logic Algebraic
Display type Discharge
Display size
Printer
Length 133 mm
Width 81 mm
Thickness unknown mm
Weight unknown g
Power Source 4xAA sealed
Country
Original price unknown
Est. current value unknown
Year introduced 1974
Year discontinued 1974

See other calculators manufactured by Keystone.