Photoelectric Sensors (Background Rejection, Block Style): Type - Photoelectric Retroreflective; Sensing Range - 15ft (4.6m); Voltage Range - 5VAC; Output Mode - Light/Dark Operate; Output Configuration - NPN/PNP; Connection Type - Connector, 4-pin Euro; Connection Size - M12x1; Construction Style - Compact, Threaded Nose 18mm; Sensing Position - Side; Response Time - 0.3ms; Beam Type - Visible Red; Material - Thermoplastic; Enclosure Rating NEMA - NEMA 1,2,3,3S,4,4X,12,13; Enclosure Rating IEC - IEC IP67; Temperature Rating - -20 to 50degC (-4 to 122degF)