Designed especially for contractors, estimators, and surveyors. Handles any and all prints. In most situations, select any of the 111 common built-in scales, key in up to 19,998 user-setable scales. Calculates square and cubic dimensions for regular areas and volumes. Counter and adder buttons on probe tip count items or add fixed lengths while scaling. Create, store, and retrieve two user-defined scale factors. Protective case and computer interface kit sold separately. Connects to any Windows application with XLU2 Interface Kit.