pf2e.fyi
From Pathfinder Howl of the Wild, which isn't enabled.

True Senses

FEAT 17
AWAKENED-ANIMAL
Activity 2 actions
Prerequisites Natural Senses
Frequency once per day

Your senses are so sharp they pierce through all illusions. You can heighten your senses to non-magically gain the effects of a 6th-rank Truesight spell for 10 minutes. The ability to "see through" illusions and polymorph effects applies to any precise sense you possess.

Pathfinder Howl of the WildORC