Lady’s Veil

Wondrous item, common (socketable, attunable)
  This fine-meshed shroud can be socketed on any worn headgear or armour, such as a helmet, cloak, breastplate, or crown. Looking through the mesh, an attuned wearer can detect corpses and creatures ripe for decomposition.
  As an action, you can open your awareness to magically detect corpses and undead. Until the end of your next turn, you know the location of any corpse or undead creature within 60 feet of you that isn’t behind total cover and that isn’t protected from divination magic. This sense doesn’t tell you anything about a creature’s capabilities or identity. After you activate this property, you can’t do so again until the following dawn.