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This solar scientific calculator comes with a highly efficient solar panel that requires only 50 lux, works with any available light. Will never need batteries.
10 digit LCD + 2 digit exponent. 15 levels of parenthesis. 67 functions including all the preprogrammed functions of Large Display Scientific Calculator 830003 plus; binary, octal decimal, sexagesimal, and hexadecimal conversion, and standard deviation. Comes with a soft carrying pouch, full instructions and a button cell battery. Dimensions: 5-1/4 x 2-3/4 x 7/16"
Weight: 2 oz.