GHS Geophone

Detects vibration like a seismography detects tremors and earthquakes. The lights light up according to how much vibration is detected. You can use to for detecting movement or objects. Place it in an area to see if phantom footsteps or knocking also causing vibrations which would show they are really happening. You can also use to as a trigger prop and ask spirit to touch it and/or turn on the lights in responses to questions.

$82.00