Casio HQ-21
The Casio HQ-21 is an arithmetic calculator with 8 digits precision and algebraic logic. It has 5 functions, 24 keys, and an LCD (liquid crystal) display. Note: time/date function
Facts at a glance:
| Feature | Value |
|---|---|
| Type | Arithmetic |
| Functions | 5 |
| Keys | 24 |
| Precision | 8 |
| Logic | Algebraic |
| Display type | LCD |
| Year introduced | 1985 |
Replacements:
If you have a Casio HQ-21 that is no longer working, you can consider replacing the calculator with a modern equivalent.
We suggest the following current models as possible replacements: