SIPART PS2 Smart, electropneumatic positioner, 4...20mA, Ex/nEx, double-acting, polycarbonate enclosure, for pneumatic linear and part-turn actuators. Non-contacting (wear-free) position detection (NCS). Standard Without explosion protection. Connection thread el.: M20x1.5 / pneu.: G 1/4 Digital I/O Module (DIO), 1 digital input, 3 digital outputs (2 min. or max. limit values, 1 fault indicator). " Without option module. . Brief instructions English / German / Chinese. Standard / Fail-Safe - Depressurizing the actuator in case of failure of electrical auxiliary power (single acting only). Manometer block aluminumG¼, double-acting with plastic manometer IP31 (MPa, bar)