To detect labels as machines apply them to items passing rapidly through on an automated production line, you need a rugged, high-speed label sensor. Banner Engineering now offers two new sensors for scanning. The SLE3 and SLU4 series each feature a narrow slot between two arms with the emitter and receiver mechanically aligned for ease of installation. The fixed slot width provides precise opposed-mode sensing to recognize individual labels or their paper backing as they are fed through automated labeling equipment at high speeds.