Radio Shack EC-499
The Radio Shack EC-499 is a scientific calculator with 10 digits precision and algebraic logic. It has 48 functions, 39 keys, and an LCD (liquid crystal) display. The power source is 2x1.5V mercury cell.
Facts at a glance:
|Power Source||2x1.5V mercury cell|
If you have a Radio Shack EC-499 that is no longer working, you can first try replacing the 2x1.5V mercury cell batteries. If that doesn't solve the problem, then you can consider replacing the calculator with a modern equivalent. We suggest the following current model as a replacement: