De or het conditiemeting?

The correct Dutch article is:

de conditiemeting

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

How to use conditiemeting

the conditiemetingde conditiemeting
this conditiemetingdeze conditiemeting
that conditiemetingdie conditiemeting
our conditiemetingonze conditiemeting
your conditiemetingjouw conditiemeting
every conditiemetingelke conditiemeting
which conditiemeting?welke conditiemeting?
a big conditiemeting / the big conditiemetingeen grote conditiemeting, de grote conditiemeting