Block Style: Type - Photoelectric Retroreflective Sensor; Sensing Range - 13ft (4m); Voltage - 12-24VDC; Output Mode - Light/Dark Operate; Output Mode - NPN; Connection Type - Connector, 4-pin; Connection Size - M8x1; Construction Style - Compact, Threaded Base; Sensing Position - Side; Response Time - 1ms; Beam Type - Visible Red; Housing Material - PBT; Enclosure Rating IEC - IEC IP67; Temperature Rating - -40 to 55degC (-40 to 131degF)