With All Hallows Eve just around the corner, you'll want to pick up one of these Ghost Meters. This is a used, working, Guass Meter for detecting magnetic fields. Like those produced by paranormal activity, or the magnet on your refrigerator. See the pics, banana for scale :) The meter runs on a standard 9V square battery. Lights illuminate, the meter swings to show intensity and a beeping sound is heard while in the presence of a magnetic field...or ghost. Video shows device in operation. Some wear, scratches on plastic case. Ghost is not included. Thank you for looking...