I told the gentleman that the door had an automatic opener and that it can open by itself.

我告诉那位先生，门有自动开关，可以自己打开。

youdao

Electronic mail arrives from the company that made her garage door opener.

从公司发来了车库门打开器的电子邮件。

youdao

Suppose your remote car door opener does not have the range to reach your car across the parking lot. Hold the metal key part of your key fob against your chin, then push the unlock button.

如果你的汽车遥控钥匙不能越过停车场打开车门，把钥匙链上的金属钥匙按在下巴上再按下开锁键。

youdao

The instructions could come from the outside--like a computer that acts as a garage-door opener--letting the drugs out of the reservoir.

FORBES: Magazine Article

Master Lock sells a garage-door opener with a built-in fingerprint scanner, the Kwikset SmartScan Deadbolt will open up your front door with another finger swipe and Schlage's LiNK door locks allow owners to give anyone access to their home by punching a code into a computer keyboard or mobile phone's keypad.

FORBES: Magazine Article

He also said he had been told the bombs were detonated with a "garage door opener-type of device".

BBC: CIA 'tracked Boston bomb suspect Tamerlan Tsarnaev'