Photoelectric Sensors (Background Rejection, Block Style): Type - Photoelectric Retroreflective; Sensing Range - 30ft (9m); Voltage Range - 10-30VDC; Output Mode - Light/Dark Operate; Output Configuration - SPDT EM Relay; Connection Type - Cable; Connection Size - 22.8m (75 ft); Construction Style - Compact, Threaded Base; Sensing Position - Side; Response Time - 20ms; Beam Type - Visible Red; Material - Thermoplastic; Enclosure Rating NEMA - NEMA 1,2,3,3S,4,4X,12,13; Enclosure Rating IEC - IEC IP66; Temperature Rating - -40 to 50degC (-40 to 122degF)