Photoelectric Sensors (Background Rejection, Block Style): Type - Photoelectric Retroreflective; Sensing Range - 21ft (6.5m); Voltage Range - 10-30VDC; Output Configuration - NPN; Connection Type - Cable; Connection Size - 18.3m (60 ft); 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 - -4 deg. to +158 deg. F (-20 deg. to +70 deg. C)