Photoelectric Sensors (Background Rejection, Block Style): Type - Photoelectric Retroreflective Polarized; Sensing Range - 12ft (3.5m); Voltage Range - 10-30VDC; Output Configuration - NPN; Connection Type - Connector, 4-pin Euro Pigtail; Connection Size - M12x1; Construction Style - Compact, Threaded Nose 18mm; Sensing Position - Side; Response Time - 600s; Beam Type - Visible Red; Material - ABS; Enclosure Rating NEMA - NEMA 6; Enclosure Rating IEC - IEC IP67; Temperature Rating - -20 to 70degC (-4 to 158degF)