Rockwell Automation 42CA-P2KPB-D4

18 mm Cylindrical Sensor,18 mm Cylindrical,Polarized Retroreflective,Visible Red,Not Adjustable Sensitivity,PNP,DC Dark Operate,4 Pin Micro Quick Disconnect,Plastic,18mm Mount,2.00 ms,3 mm Minimum Sensing Distance,3800 mm Operating Distance,3000 mm Sensing Distance,4 pin DC Micro