A probe would have detected any form of electromagnetic activity.

This probe detects acid levels to determine if it correlates with your symptoms.

If the probe detects a low pH level, the pump activates.

The thermal probe then detects the photothermal response of this region of the sample.

Alexander, what about the big life-forms the probes detected?

OK, we worked all night because somebody's probe detected something.

No such link exists here or my probes would have detected it.

"Our remote probes are detecting an unidentified vessel approaching the system at warp!"

The probe detected water on the lunar surface.

The probe detected Mercury's magnetic field, which is very similar to Earth's.