The Aristo M85S is a scientific calculator with 8 digits precision and algebraic logic. It has 23 functions, 25 keys, and an LED (light-emitting diode) display, typical of calculators of this era. The power source is 3xAA sealed.
Facts at a glance:
|Power Source||3xAA sealed|
If you have an Aristo M85S that is no longer working, you can first try replacing the 3xAA sealed 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: