The sensors are in place. You'll know if anything comes around.
4 seconds sound clip from the Star Wars: Episode V - The Empire Strikes Back movie soundboard.
You can hear this line at 00:05:16 in the Blu-ray version of the movie.
Quote context
[...]
- All right! Don't lose your temper. I'll come right back and give you a hand.
- Solo?
- No sign of life out there, General.
- The sensors are in place. You'll know if anything comes around.
- Commander Skywalker reported in yet?
- No. He's checking out a meteorite that hit near him.
- With all the meteor activity in this system, it's going to be difficult to spot approaching ships.
- General, I got to leave. I can't stay anymore.
[...]