Enhanced Sensors

 is a perk in Fallout: New Vegas given to you while you have ED-E as a companion.

With this perk, your detection range is significantly enhanced, even with extremely poor perception. Any target, hostile or friendly, will be spotted well before they can actually see you in return. It also allows you to target cloaked enemies in V.A.T.S. mode. When paired with the Spotter perk given by Craig Boone, you can snipe targets from much greater distances.

This perk's effectiveness is limited indoors, since walls will prevent you from accurately assessing the location of any hostile targets. It will, however, give you a general idea of the numbers you'll be facing. Outdoors, on the other hand, it can allow you to perceive and bypass particularly dangerous foes without drawing their attention. It is possible to learn to identify some particularly dangerous enemies by their movement patterns (for example a group of 4-6 fast-moving enemies is almost certainly a nest of dangerous Cazadors).