The RFT MR609 is a scientific calculator with 8 digits precision and algebraic logic. It has 22 functions, 34 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 RFT MR609 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: