(General)
Your ranger traps are especially difficult to notice and avoid.
Prerequisites
Trap class feature,
Ranger level 5th.
Benefit
Add +1 to the Difficulty Class on all
Perception and
Disable Device skill checks to find or disable the traps you make with your trap class feature. Add a +1 to the Difficulty Class on all saving throws against the effects of the trap you make with your trap class feature.