It was there, right where the sensors had found it.
If the sensors find something out of line, trains approaching the bridge get red signals.
If the alien ship has any force shields, my sensors can't find them.
"We've looked, but our sensors haven't found such a place!"
We are the only living things on this miserable rock, so there is no place our sensors cannot find you.
Such sensors could find broad applications in medicine and industry.
"The sensors can find them without your help, and I'm not sure you're fit for duty yet."
The sensors did not find any kind of electromagnetic emissions in that area.
The sensors would never have found you in time.
Still, the more people, the harder to use sensors to find a camp.