This Electronic Ruler Digital Measuring Curve Irregular Object provides accurate and precise measurements for linear, circular, curved and irregular surfaces in centimeters and inches. Its 10 measurement records and sound and light alert functions make it easy to cover your daily measurement needs quickly and accurately.
Multi Measuring - Linear measurement, circular measurement, arbitrary curve measurement, irregular surface measurement, cylindrical diameter measurement, accumulation/subtraction of 10 historical records, measurement prompt sound, measurement breathing light , Unit switching. Easy to cover your daily measurement needs.
Rolling Electric Tape LCD Digital Screen - Rolling whatever you need to and you would easy to read the result from the LCD. Worry free from the tiny graduation on traditional rulers, good for tailors, students, seniors.