Measuring range (mm) : 0~300mm/0~12 index value: -; Precision (mm) : + / - 0.02 mm / 0.001 (< 100 mm), plus or minus 0.03 mm / 0.001 (100 ~ 200 mm), plus or minus 0.04 mm / 0.0015 (200 ~ 300 mm). Description:;