That's probably enhanced hearing or enhanced smell, or a swordsman having a special connection with his own sword.
CoO is related to
the living beings, not non-living,
As Enel couldn't predict Luffy's movements
when Luffy didn't think anything, or when attacked without aiming to Enel:
Previously Enel
catches even Gatling when Luffy aims:
When Luffy attacks the ship instead and bounced off from it, Enel couldn't predict
when Luffy is not aiming Enel:
Luffy's was more related to the living beings, when
he find Galdino (a living being) with only 1 attack, so it was Luffy first: