Photoelectric Sensors (Background Rejection, Block Style): Type - Photoelectric Retroreflective Polarized; Sensing Range - 21ft (6.5m); Voltage Range - 10-30VDC; Output Mode - Light/Dark Operate; Connection Type - Connector, 5-pin Euro; Connection Size - M12x1; Construction Style - Miniature Rectangular; Sensing Position - Side; Response Time - 0.2ms; Beam Type - Visible Red; Material - Die Cast Zinc; Enclosure Rating IEC - IEC IP67; Temperature Rating - -10 to 50degC (14 to 122degF)