ProGrader at Forex (story on page 21)
Optimal Output, Canadian Forest Industries May/June 2013
Posted on December 05, 2014
The ProGrader uses four sensors to detect any visual defects using high-definition cameras. Defects include decay, splits/shake, bark, grub holes, cuts, knots and blond knots, blue and heart stain, brown and white specks, and honeycomb.