1APPLICATIONS: LCD display digital ruler has a wide range of measurement functions including linear, circular, arbitrary curves, irregular surfaces, cylindrical diameters, and accumulation subtraction of 10 history records. 2VERSATILE: The Digital Digital Ruler features a measurement beep, measurement breathing light, and unit switching, making it easy to meet all of your daily measurement needs, and is compact enough to be used in environments ranging from 10C to 50C. 3HIGH ACCURACY: The Digital display roller ruler is equipped with advanced microprocessor technology and accuracy encoder to ensure a high levels of accuracy, with a result accuracy of 0.5%. 4EXTRA LONG DISTANCE: With a maximum measuring distance of 99 meters and support for a single range of 0 to 9 meters, this digital tape measure has a wide range of measuring capabilities. It also includes 10 sets of history records for you to check and censorship at any time, simplifying and improving your measurement work efficiency. 53 MEASUREMENT UNITS: Our digital tape measure supports three measurement units, centimeters, inches and feet. You can all easily adjust it to meet your needs. Ideal measuring tool for carpenters, plumbers, construction trades as well as body measurements, sewing, homework and DIY projects.