The MBO TR1220MR is an arithmetic calculator with 12 digits precision and algebraic logic. It has 8 functions, 29 keys, and a VFD (vacuum fluorescent) display.

Facts at a glance:

Feature Value
Type: Arithmetic
Functions: 8
Keys: 29
Precision: 12
Logic: Algebraic
Display type: VFD
Year introduced: 1980

See other calculators by MBO