"Flow sensor SFAB-1000U-HQ12-2SA-M12-EX2 With rotatable display and integrated QS fittings. 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), * in accordance with EU RoHS directive), ATEX category Gas=II 3G, Explosion ignition protection type Gas=Ex nA IIC T5 X Gc, ATEX category Dust=II 3D