Proximity Sensor SIEF-M18B-NS-S-L With plug, flush mounting Design=Round, Conforms to standard=EN 60947-5-2, Authorisation=(* RCM Mark, * c UL us - Listed (OL)), CE mark (see declaration of conformity)=to EU directive for EMC, Materials note=(* Free of copper and PTFE, * Conforms to RoHS)