This Johnson Construction Master Calculator #CALC-1500 is a must-have for any contractor or builder. With its right angle, run, pitch, and stair calculation capabilities, it is a powerful tool for construction site measurements. The calculator is handheld and battery-powered, making it easy to use and transport.

The Johnson Calculator CALC-1500 construction master is designed with a regular key size and display size, and it is perfect for office and industrial use. Its brand reputation speaks for itself, and it is a reliable choice for anyone in need of a precise and accurate calculation. This calculator is categorized as a business and industrial office equipment, and it is an excellent addition to any toolbox.