Unisonic 1540L
The Unisonic 1540L is an arithmetic calculator with 8 digits precision and algebraic logic. It has 8 functions, 25 keys, and an LED (light-emitting diode) display typical of calculators of this era. The power source is 2xAA batteries.
Facts at a glance:
| Feature | Value |
|---|---|
| Type | Arithmetic |
| Functions | 8 |
| Keys | 25 |
| Precision | 8 |
| Logic | Algebraic |
| Display type | LED |
| Length | 133mm |
| Width | 83mm |
| Thickness | 25mm |
| Power Source | 2xAA batteries |
| Year introduced | 1975 |
Replacements:
If you have a Unisonic 1540L that is no longer working, you can first try replacing the 2xAA 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: