[@FantasyChic]
definitely go more terminator then. The robot had a facial recognition type power where it scanned them (without a light or anything visible to show it happened) and got their information. For the movie it was more so that they could find their targets but yea. In depth description: [url=https://en.wikipedia.org/wiki/Terminator_(character)#Concept_and_characteristics]Click me[/url] Im thinking you could use the basic concept of the power and tweak it to fit your character a bit :) 

[@Random Kitty]
and now I'm terrified XD