"The RL28 infrared photoelectric sensors can detect objects regardless of their structure, brightness or colour as well as the brightness of the background making them ideal for use in many applications.Ultra bright LEDs for power on and switching state. Minimal black\/white difference through the infrared transmission LED. Light\/dark on switchable. Short-circuit and reverse polarity protectedSensor Style = BlockDetection Type = Background SuppressionDetection Range = 20 - 2000 mmOutput Type = PNPElectrical Connection = 5-Pin M12 ConnectorMaximum DC Voltage = 30VOptical Technology = PhototransistorLight Source = InfraredIP Rating = IP67Maximum Current = 200 mA"

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