USED GREAT CONDITION. The Casio fx-991EX ClassWiz Scientific Calculator is a handheld device known for its reliable performance and advanced features. With a regular-sized LCD display and matrix calculations capabilities, this calculator is perfect for various industrial and office applications. Its power source is both solar and battery, making it convenient for use anywhere without the need for constant charging. As a trusted brand in calculators, Casio ensures that the fx-991EX is durable and efficient for all your computing needs.
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