Proximity Sensor SIES-Q8B-NS-S-L Inductive, with plug, can be flush-mounted, normally-open function, negative-switching. 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, Nominal switching distance=1,5 mm