User blog comment:LivesByProxy/Ward Variety & Sight Options/@comment-26815373-20160227062625/@comment-26313342-20160229041856

Not really.

Sensor tower is the name I was looking for btw. Sensor towers basically grant vision of the units in its range, but doesn't reveal them, as in that they are not identifiable nor targetable.

Basically think of it as Rek'Sai's tremor sense.