#Built-in whiteboard parameters, no need to calibrate every time, to achieve fast start-up measurement #Dual positioning: innovative patent for light positioning and precise positioning of the cross #The three core technologies of super optical path, dynamic integration and measurement timing are used, which greatly improves the measurement stability and measurement accuracy #45°/0° optical ometry, the measured results are more consistent with the visual effects #8mm measuring diameter, vertical design, suitable for more measurement occasions