With power switch, any position measurement unit conversion, any position zeroing (Material): ABS (Process): stable quality chip (Use): Widely used in various types of arc cylindrical non-specified surface length measurement (Standard): Industrial standard (Specifications): 0-200m Reading value: 0.01mm/0.0005" USB charging port charging Measurement units: mm, cm, inch, m Specifications: [Multiple application scenarios]For surface measurement Diameter measurement Flat measurement Flexible object measurement Irregular object measurement [Long measuring distance]Can be used for distance measurement within 200m [HD screen display]Screen backlight Large screen with clear numbers [Durable and long-lasting battery]Up to 6 hours of uninterrupted operation with USB-TYPE C charging [Functional Features]5 measurement modes switching 10 sets of data cycles storage Package Included: 1 x electronic ruler 1 x Charging cable Notes: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.