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Achieve reliable, non-contact edge detection and accurate timing triggers with premium Photointerrupter Sensors from Al-Hekmh Electronics. Also known as slotted optical switches, these compact components house an infrared emitting diode aligned directly across a narrow physical gap from a high-sensitivity phototransistor detector.
Our photointerrupters deliver instantaneous digital switching actions whenever an opaque object passes through the slot to block the optical beam path. Free from mechanical wear, they are the ideal, high-speed hardware choice for printer paper-feed triggers, optical limit switches, motor revolution counters, and automated end-stop position indicators.