Turck FCS-G1/4A4-NAEX-H1141 Flow Sensor – Immersion Sensor without Integrated Processor, ATEX category II 2 G, Ex zone 1, ATEX category II 2 D, Ex zone 21, Ex sensor for liquid media, Calorimetric functionality, Adjustment via Ex signal processor, Status displayed via signal processor, Intrinsically safe Ex ib IIC T6, for use in zone 1, Connector device, M12 × 1, 4-wire connection to an Ex0 processor