Range of External Diameter**: 0 - 200 mm / 0 - 8″
Range of Internal Diameter**: 30 - 250 mm / 1.2″ - 10″
Accuracy: ±5 μm
Repeatability*: 2 μm
*After set zero, accuracy is ±5µm within range of ±2mm from zero position
**The measuring range will change according to different measuring points
