 Light detector
Source Ultimate Equipment pg. 103, Advanced Player's Guide pg. 184
Price 1 gp; Weight —
Category Alchemical ToolsDescriptionThis hand-sized metal plate is covered with a thin layer of light-sensitive transparent paste. If exposed to light, the paste darkens and becomes opaque, depending on the amount of light. Bright light causes it to fully darken in 1 round, normal light in 3 rounds, and dim light in 10 rounds. It is mainly used by creatures with darkvision to determine whether creatures carrying light have recently passed through an area. The plate is sold wrapped in a thick black cloth to prevent accidental light exposure from ruining the plate.ConstructionCraft (Alchemy) DC 10
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