Unisonic 840
The Unisonic 840 is an arithmetic calculator with 8 digits precision and algebraic logic. It has 8 functions, 26 keys, and a VFD (vacuum fluorescent) display.
Facts at a glance:
| Feature | Value |
|---|---|
| Type | Arithmetic |
| Functions | 8 |
| Keys | 26 |
| Precision | 8 |
| Logic | Algebraic |
| Display type | VFD |
| Year introduced | 1975 |
Replacements:
If you have a Unisonic 840 that is no longer working, you can consider replacing the calculator with a modern equivalent.
We suggest the following current models as possible replacements: