Micro intellectual control_one button tocontrol open stop and close
The light will be on while opening or closing the door three minutes later the light will be off automatically.
Control the unit running by computer program test the force of open or colse the door the unit has the function of photo beam auto_close lock door etc.

The door will pause momentarily then rebound when it reachs the hinders on the closing way the unit has the protecting functions of overload overhot or low power inpute etc.
Decoding_ rolling code.
Manual disengagement_open and clcse the door by hand without power.
Optional functions_photo beam battery backup or wall button.