The Demon Compass resembles a cheap analog watch, but its face is a black ring surrounding a red circle, cut into eight triangular sections, that has an elongated diamond mounted on top of it. Beneath the red circle is a small yellow bar that measures Demon Energy in much the same way as a illustrated vector of a digital equalizer does with sound.
The Demon Compass indicates how far-away and in what direction an already-identified demon is from the Compass' wearer.
Spirit Detective SagaEdit
Chapter Black SagaEdit
Botan mentions the Compass as a possible way of finding Hiei. She claims that it's been modified NOT to overload by using Hiei's DNA as a way to lock on to his Demon Energy and find him that way. But she's discouraged after Kurama casually tells her that he doesn't keep a lock of Hiei's hair on him.