Schneider Electric,PHOTOELECTRIC SENSOR 18MM NPN XUB,-25...55 °C,1 NC,NPN,12...24 V DC with reverse polarity protection,DC,20 m thru beam,IP67 double insulation conforming to IEC 60529-IP65 double insulation conforming to IEC 60529,PBT,PMMA,cylindrical M18,general purpose single mode,plastic,thru beam