... as shipbuilding , war industry, aviation, manufacturing and setting out optical quadrant TE600BThe instrument of measuring the slant angle and setting angle ... industry, aviation, manufacturing and setting out large equipment.QM100 Optical Quadrant ParameterScale unit of micrometer1°Scale unit of reticle1´Scale unit ... +120°Accuracy+30"Size 150mm X 85mm X138mmWeight1.5kg optical quadrant QM100