It does work, it just doesn't give the effect that Sensors do on units. SensorArray makes the game give a radar event when a unit is uncloaked within the sensor radius, but does not itself detect cloaked units like it did in TS.
It does work, it just doesn't give the effect that Sensors do on units. SensorArray makes the game give a radar event when a unit is uncloaked within the sensor radius, but does not itself detect cloaked units like it did in TS.