Currently the Sensor Scan ability puts a debuff on your target, and gives you a buff which increases your stealth sight range. However, it is impossible to use the stealth sight aspect of the ability because it requires that you have an enemy ship targetted, in which case the enemy has already shown themselves and rendered the ability moot.
You should be able to use Sensor Scan even with no target, so that you can benefit from the stealth sight bonus.
0