Term for security checkpoints separated by sex

In some places, a security checkpoint has two areas, one for checking men, and another for checking women. I'm looking for the term which describes this segregation by sex. This would be the opposite of how "co-ed" is used for schools which allow students of both genders.

An example usage might be:

Just inside the entrance, past the [multi-gender-word] security, sinks were placed for the washing of hands.

I don't believe there is a one-word antonym, but I would suggest:

sex-segregated security checkpoints

gender-segregated security checkpoints

Or if it's well understood in a given context to refer segregation by gender (as opposed to race) you could simply say:

segregated security checkpoints

However, for the sake of clarity, in your example sentence you could simply say:

Just inside the entrance, past the male and female security check points, sinks were placed for the washing of hands.

This should be sufficient to indicate that the are separate check points for men and women.

I will recommend "gender-specific" as I think it sounds better than "gender-segregated" and clearer than simply "gendered".

I would offer that the antonym of co-ed is same-sex, as in this sentence:

Other dorms are coed, with same-sex roommates, and same-sex bathrooms and floors or wings.
(The College Buzz Book, 2007)

So, I would refer to them as the same-sex security checkpoints.