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Buy a light curtain sensor online. The SUCH light curtain sensor is a professional industrial protection device that uses infrared beams and features reverse connection protection/output short circuit protection, making it an ideal choice for industrial safety. The safety light curtain sensor offers optional optical axis spacing of 20mm/40mm, 4-22 beams, a response time ≤10 ms, and operates at DC 24V.
Light curtain sensors are used for machine safety and object detection. They protect operators from hazardous machinery and are also used for sizing, positioning, and presence detection in automated systems.
A safety light curtain sends multiple infrared beams from an emitter to a receiver. When any beam is blocked by a hand, object, or part, the system detects the interruption and sends a signal—either to stop a machine or to perform a detection task.
Detection capability depends on the resolution. The light curtain can detect objects as small as a finger (high-resolution), a hand, or even a full body presence.