Blocking Sense Through

Some sense through abilities (generally those of a magical nature) cannot penetrate specific materials. This is indicated in brackets after the associated sense in the sense through entry in the creature’s statistics. For example, a lycanthrope with sense through (scent [blocked by silver]) can smell through walls—but not through even a thin layer of silver.

Unless stated otherwise, in addition to all other limitations, sense through is blocked by energy fields and sufficiently dense material. This includes all energy fields that impact the physical world (such as force fields that grant temporary Hit Points and force effects such as the wall of force spell). The density limitation generally causes these senses to be blocked by 10 feet of wood or plastic, 5 feet of stone, 1 foot of common metal, or 6 inches of lead or any starmetal (such as adamantine). Typical suits of armor and containers do not block such vision unless they specify otherwise.