... audio-visual and easy to adjust Measurement of position and torque is accurate and reliable. ELECTRIC ACTUATOR1 ... for the control of globe valve, gate valve, throttle valve, water gate and etc. And SND ... audio-visual and easy to adjust.Measurement of position and torque is accurate and reliable.Provided ... CONTROLWhen the red knob is located at Remote position, the actuator can carry out functions of ...