Sharp EL-431 (RULERCAL)
The Sharp EL-431 is an arithmetic calculator with 8 digits precision and algebraic logic. It has 6 functions, 24 keys, and an LCD (liquid crystal) display. The power source is Solar. Note: calculator/ruler.
Facts at a glance:
If you have a Sharp EL-431 that is no longer working, you can consider replacing the calculator with a modern equivalent. We suggest the following current models as possible replacements: