Senses objects as small as 0.30 mm that pass through the slot Easily adjustable with single-turn potentiometer sensitivity adjustment and visible red beam Available in eight slot widths, from 10 to 220 mm Features molded-in beam guides to simplify installation and alignment Rugged metal IP67-rated housing Selection switch for light/dark operate Ideal for counting, sensing parts on conveyor rails and belts, detecting edges and gear teeth, and other applications