"Sensor box SRAP-M-CA1-270-1-A-T2P20-EX2 Analogue feedback signal from 4?.20mA for monitoring process valves actuated with pneumatic quarter turn actuators. Design=Angular, Based on the standard=VDI/VDE 3845 (NAMUR), Authorisation=(* RCM Mark, * c UL us - Recognized (OL)), CE mark (see declaration of conformity)=(* to EU directive for EMC, * to EU directive explosion protection (ATEX)), ATEX category Gas=II 3G