Construction Calculator Portable Length 5 5/8 in Width 3 in Depth 5/8 in Display Digits 11 Display LCD Display Dimensions 3/4 in H x 2 1/2 in W Area Built-In Right-Angle Solutions Calculates Feet/Inch/Fraction Framing Linear Rafter Roof Stair Layouts Volume For Building Construction Engineering and Design Professionals Auto Shutoff Backspace Key Built-In Functions Easy-To-Use Memory Paperless Tape To Review Last Entries Power Supply Battery