Rockwell Automation 42CA-U2KPB-D4

18 mm Cylindrical Sensor,18 mm Cylindrical,Standard Retroreflective,Visible Red,Not Adjustable Sensitivity,PNP,DC Dark Operate,4 Pin Micro Quick Disconnect,Plastic,18mm Mount,1.00 ms,3 mm Minimum Sensing Distance,4800 mm Operating Distance,4800 mm Sensing Distance,4 pin DC Micro