Compex SR-55

The Compex SR-55 is a scientific calculator with 9 digits precision and algebraic logic. It has 22 functions, 36 keys, and a VFD (vacuum fluorescent) display. The power source is 3xAA.

Facts at a glance:

Feature Value
Type: Scientific
Functions: 22
Keys: 36
Precision: 9
Logic: Algebraic
Display type: VFD
Power Consumption: 0.450W
Power Source: 3xAA
Year introduced: 1976
YearDiscontinued: 1976

See other calculators by Compex