Construction Master Pro 4225 calculator. Works as standard math calculator with %, +, -, x, ÷, +/-, Π, 1/x, x2, and √. Weight: 4.15 oz. (117.7 gm) Includes Case and Field Reference Guide. For 30 years, our products have helped more than 8 million busy professionals work better, faster, and more efficiently with easy-to-use, portable solutions.
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