Brother 722SR

The Brother 722SR is a scientific calculator with algebraic logic. It has 36 functions, 45 keys, and a VFD (vacuum fluorescent) display. The power source is 4xAA.

Facts at a glance:

Feature Value
Type: Scientific
Functions: 36
Keys: 45
Logic: Algebraic
Display type: VFD
Power Source: 4xAA
Year introduced: 1977

See other calculators by Brother