Proximity Alert
Source
Galaxy Exploration Manual pg. 29
As a standard action, you cause a personal comm unit you touch to sense and transmit subtle electronic impulses back to you. You gain blindsense (electricity) with a range of 30 feet centered on the comm unit. This effect lasts for 1 hour or until you move more than 100 feet from the comm unit. As a move action, you can expend an unused spell slot to also gain blindsight (electricity) with a range of 30 feet centered on the comm unit, which lasts for a number of rounds equal to twice the expended spell’s level.
Dragonscript
ID
9ad17922de8e3757b841468a