Electro pneumatic is used for controlling movement of final control element such as Linear Cylinder, Diaphragm Control valve or Rotary actuator device which accept directly variable electronic signal & EP positioner is a precision with the help of auxiliary high pressure supply accurately controls movement of final control element corresponding to set point. No air consumption under balance condition hence saving of energy, Auto start fu, No air consumption under balance condition hence saving of energy, Unit can be modified for use with electrical actuator.