Use special motor to drive the rolling center shaft to rotate, to achieve the shutterswitch, when the motor is set to the upper and lower limits automatically stop.
用专用电机带动卷帘中心轴转动，达到卷帘开关，当转动到电机设定的上下限位时自动停止。
2
Aluminum alloy shutter door is no longer like the traditional rolling shutter door switch, it reduces the noise to a minimum will not cause noise problems.
铝合金卷帘门不再像传统卷帘门的开关那样，它把噪音降到了最低不会使人产生噪音的困扰。
3
If you are shooting fast-moving objects, please check the shutter speed and switch to shutter-priority mode if necessary.