The Canon F-604 is a scientific calculator with 10 digits precision and algebraic logic. It has 142 functions, 44 keys, and an LCD (liquid crystal) display. The power source is 2xLR44. The calculator was manufactured in China.
Facts at a glance:
If you have a Canon F-604 that is no longer working, you can first try replacing the 2xLR44 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: