Fibre-optic unit SOE4-FO-D-HF2-1PU-K Ideal for material-independent small part detection. Design=Block design, Conforms to standard=EN 60947-5-2, Authorisation=(* C-Tick, * c UL us - Listed (OL)), CE mark (see declaration of conformity)=to EU directive for EMC, Materials note=Free of copper and PTFE