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No.NameDeshan Optical Technology whiteboard dual camera SPECS        Model:DS-9085OP1OpticalInteractive            whiteboard  一、Hardware part:★Write Property:Optical scanning technique, using any non-transparent object operation,4 points touch,two people writing at the same time. ★The casing outside diagonal size(Both sides of the whiteboard have more than 20 shortcuts convenient for teachers use):Dual camera seriesWhiteboard sizeRatio85inch1740*12404:396inch2110*119016:9103inch2260*131016:9★Rationale:Above two corners were a small 5mm optical lens, requires each optical detector connected in series, for easy repair and maintenance.★Material description: the solid aluminum sheet, high ...
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