Unisonic 1040-I

Unisonic 1040-I
Image: Joe Haupt, CC BY-SA 2.0
The Unisonic 1040-I is an arithmetic calculator with 8 digits precision and algebraic logic. It has 8 functions, 27 keys, and a VFD (vacuum fluorescent) display. The power source is 4xAAA.

Facts at a glance:

Feature Value
Type: Arithmetic
Functions: 8
Keys: 27
Precision: 8
Logic: Algebraic
Display type: VFD
Length: 140mm
Width: 83mm
Power Source: 4xAAA
Year introduced: 1975

See other calculators by Unisonic