Canon F-502G Scientific Calculator Black This 10 + 2 digit, 1-line display basic Scientific Calculator features 140 functions. Features 10 + 2 digit, 1-line display Scientific Calculator Manufactured using 100% Canon Copiers recycled plastic 140 functions in total 15 levels of Parenthesis 1 independent memory Protective hard cover Auto power-off function Battery powered (supplied) Wx Dx H: 79x 142x 15.25mm