a motion/optical 'sensor'
(..) Authorisation: Picard -AT. - Did I catch you at a bad time? - No, Admiral, of course not. I've just heard that our colony on Ivor Prime has been destroyed. - Long-range sensors... - Yes, I know. The Borg. Captain's log: Stardate .. The moment I have dreaded for nearly six years has finally arrived. (..)1996 Star Trek: First Contact