Casio HR-7
The Casio HR-7 is an arithmetic calculator with 10 digits precision and algebraic logic. It has 6 functions, 28 keys, and an LCD (liquid crystal) display. The power source is 4xAA batteries. The calculator was manufactured in Japan.
Facts at a glance:
| Feature | Value |
|---|---|
| Type | Arithmetic |
| Functions | 6 |
| Keys | 28 |
| Precision | 10 |
| Logic | Algebraic |
| Display type | LCD |
| Printer | Yes |
| Length | 181mm |
| Width | 85mm |
| Thickness | 34mm |
| Power Consumption | 2.000000W |
| Power Source | 4xAA batteries |
| Country | Japan |
| Year introduced | 1984 |
| Year discontinued | 1985 |
Replacements:
If you have a Casio HR-7 that is no longer working, you can first try replacing the 4xAA batteries. If that doesn't solve the problem, then you can consider replacing the calculator with a modern equivalent.
We suggest the following current models as possible replacements: