Based on this product's specifications, here are some alternatives and similar models
Scientific calculator CASIO FX-82CE X — 2-line display, 12 digits, battery/solar, pocket plastic housing
Summary description:
CASIO FX-82CE X scientific calculator in black offers a two-line display and 12-digit precision in a compact pocket-sized plastic housing. Powered by battery with solar assist, it provides built-in scientific functions suitable for school, college and everyday calculations. Dimensions 165×77×13.8 mm make it portable for study, exams and field use.