Unisonic 839 SQ

The Unisonic 839 SQ is an arithmetic calculator with 10 digits precision and algebraic logic. It has 7 functions, 24 keys, and an LED (light-emitting diode) display, typical of calculators of this era. The power source is 4xAA.

Facts at a glance:

Feature Value
Type: Arithmetic
Functions: 7
Keys: 24
Precision: 10
Logic: Algebraic
Display type: LED
Length: 152mm
Width: 89mm
Power Source: 4xAA
Year introduced: 1975

See other calculators by Unisonic