Vision Mastery (Item Mastery)Source Weapon Master's Handbook pg. 27
You can pierce invisibility with divination magic items.
Prerequisites: Use Magic Device 2 ranks, base Fortitude save bonus +4.
Benefit: You can cause an item that has a divination spell of 1st level or higher in its construction requirements to cast either darkvision or see invisibility. You can use this feat once per day, plus an additional time per day at base Fortitude save bonus +6, +8, +10, and +12.