Is the security door open outside or inside?

Of course, it's good to open the door outside. Whether it is fire fighting or security, it is convenient and safe to open the door outside. As long as your door can be opened outside, you'd better open it outside. Of course, it does not rule out that it cannot be opened outside. For example, after the door is opened, the corridor or neighbors block it, and the property or neighbors just won't let you drive outside, so you can only drive inside! !