Calculated Industries Construction Master® Pro advanced construction-math calculator. Measures 5.7" x 3.0" x 0.65" (145 mm x 76 mm x 17 mm). Includes:
- Rugged shock-, dust- and moisture-resistant Armadillo Gear case
- Easy-to-follow pocket reference guide in English and Spanish
- Long-life batteries (2x 1.5-volt LR-44/A76)
- Full one-year limited warranty