De or het overwegbeveiliging?

The correct Dutch article is:

de overwegbeveiliging

Rule Words ending in -ing: almost always de. See the rule

How to use overwegbeveiliging

the overwegbeveiligingde overwegbeveiliging
this overwegbeveiligingdeze overwegbeveiliging
that overwegbeveiligingdie overwegbeveiliging
our overwegbeveiligingonze overwegbeveiliging
your overwegbeveiligingjouw overwegbeveiliging
every overwegbeveiligingelke overwegbeveiliging
which overwegbeveiliging?welke overwegbeveiliging?
a big overwegbeveiliging / the big overwegbeveiligingeen grote overwegbeveiliging, de grote overwegbeveiliging