Professional Large LCD Display Digital Caliper: caliper have 0-300mm measuring range, 0.02mm accuracy and 0.005"/0.01mm resolution. Perfect measuring tool and accurate for home measurement or DIY. Large easy-to-read LCD screen, reading is clearer. Please choose stainless steel digital caliper for more accurate measurement. 3 Unit Conversion Zero Button: The digital caliper was designed with 3 units for conversion: inch, mm and fraction. Press the button, you can select the measurement unit you prefer. Press the on/off button, slide the digital caliper anywhere, then you can read the values on the screen. Digital caliper has a ZERO button, making the measuring operation more flexible. 4 Ways to Measure: The digital metal caliper measuring tool comes with two sets of jaws and a probe, which are easy to measure depth, pitch, outer and inner diameter, making all your objects measurable. Quality Assured: The digital caliper body is made of steel stainless is constructed of finely polished stainless steel with a knurled roller and locking screw that ensures smooth sliding and precise positioning when taking measurements.