Photoelectric Sensors (Background Rejection, Block Style): Type - Photoelectric Retroreflective Polarized; Sensing Range - 20 ft. (6m); Voltage Range - 10-30VDC; Output Mode - Light/Dark Operate; Output Configuration - NPN; Connection Type - Cable; Connection Size - 9m (30 ft); Sensing Position - Side; Response Time - 3ms; Beam Type - Visible Red; Material - Thermoplastic; Enclosure Rating NEMA - NEMA 6P; Enclosure Rating IEC - IEC IP69K; Temperature Rating - -40 to 70degC (-40 to 158degF)