An affordable multi-scale digital plan measure for contracting and building professionals without PC interface capabilities. Calculates areas and volumes for regular shapes. Features 72 built-in scales for application versatility and plenty of scaling power. Includes six user-defined custom scales available for use with enlarged, reduced, copied, faxed, or unscaled prints and plans. Two built-in memories, subtract key, and push-button counter. User s guide, longlife batteries, and case. One-year warranty.