When the Door Encounters Obstacles During Opening and Closing, It Can Automatically Stop or Rebound: Very Safe. You Can Set the Automatic Closing Time: to Make Your Life Easier.
Reliable Electromagnetic Limit, Easy to Adjust. The Built-in Maximum Motor Running Time (Mrt) Can Be Adjusted to Provide Multiple Safety Protections. 1 X Bolt / Pin / Nut / Screw Set.
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A If you receive a defective item, you may return it or ask for a discount. Due to time zones, our reply to your questions may not be immediately. If it's non-workdays, please kindly be patient and wait till Monday. This item is in the category "Home & Garden\Home Improvement\Building & Hardware\Garage Doors & Openers\Opener Systems". The seller is "happyeachday" and is located in this country: US.This item can be shipped to United States.