"Sensor box SRBG-C1-N-1-ZU-M12 For electrical feedback and position monitoring of process valves actuated with pneumatic quarter turn actuators, inductive measuring principle. Design=Angular, Based on the standard=(* EN 60947-5-2, * VDI/VDE 3845), Authorisation=(* RCM Mark, * c UL us (OL)), CE mark (see declaration of conformity)=(* to EU directive for EMC, * to EU directive explosion protection (ATEX)), ATEX category Dust=II 1D