Photoelectric Sensors (Background Rejection, Block Style): Type - Photoelectric Retroreflective Polarized; Sensing Range - 79" (2000mm); Voltage Range - 17-264VAC; Output Mode - Light/Dark Operate; Output Configuration - NPN/PNP; Connection Type - Connector; Connection Size - M12x1; Construction Style - Rectangular; Sensing Position - Side; Response Time - 1ms; Beam Type - Infrared; Material - Polycarbonate; Enclosure Rating IEC - IEC IP67; Temperature Rating - -25 to 55degC (-13 to 131degF)