Photoelectric Sensors (Background Rejection, Block Style): Type - Photoelectric Diffuse Reflective; Sensing Range - 20ft (6m); Voltage Range - 10-30VDC; Output Mode - Light/Dark Operate; Output Configuration - NPN; Connection Type - Connector, 4-pin Euro; Connection Size - M12x1; Construction Style - Compact, Rectangular; Sensing Position - Side; Response Time - 1ms; Beam Type - Infrared; Material - Die Cast Zinc; Enclosure Rating NEMA - NEMA 6; Enclosure Rating IEC - IEC IP67; Temperature Rating - -20 to 55degC (-4 to 131degF)