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Hermetic Door Lock

UPDATE: Full build is complete, link to the right under "required items". Obviously the full build is not required but it's the cleanest way to get a link there on this page.

Publishing mostly for sharing purposes. Plus, it's at a spaceport. You never know when you'll need another airlock or hermetic chamber at a spaceport.
3 delay gates
14 logic gates
4 sensors
2 doors
2 LEDs
4 inverter gates

No flip-flops used, because I don't like them. When a flip-flop circuit gets stuck or someone teleports out, you have to reset everything. Quite messy. S/R NOR latches are just as bad.

Upon touching the door from either direction, that door opens. It stays open as long as you are in touch distance. If you walk away, it closes and nothing else happens. If you enter the lock far enough, that door closes. A red LED illuminates (which can also be wired to vents or other machinery, just use the same circuit name that triggers the red LED). After a few seconds, the red LED goes out, green LED illuminates, and opposite door opens. Lock will remain in this state until you completely exit. Exiting by teleporting should not glitch the circuit (I tested this several times, but you never know, you might turn out to be the unlucky one).

The circuit does use delays. When you leave the lock, it will still take a few seconds for all delays to clear. Because of this, if you attempt to re-enter too quickly, it will slam the door in your face. Rude, no? Just take a step back & try again.

I intend to have some fun testing this with critters, so this version can be triggered by creatures. This can easily be changed by editing the 4 sensors.