Photoelectric Sensors (Background Rejection, Block Style): Type - Photoelectric Reflex; Sensing Range - 75ft (23m); Voltage Range - 24-240VAC, 12-24VDC; Output Mode - Light/Dark Operate; Output Configuration - SPDT EM Relay; Connection Type - Terminals; Connection Size - 1/2-14NPSM; Construction Style - Compact, Rectangular; Sensing Position - Side; Beam Type - Visible Red; Material - ABS; Enclosure Rating NEMA - NEMA 1,2,3,3S,4,4X,6,6P,12,13; Enclosure Rating IEC - IEC IP67; Temperature Rating - -25 to 55degC (-13 to 131degF)