The vibration sensor is designed for protecting against forced entry by hammer, saw, crowbar, etc. through walls, ceilings, windows, safes, cabinets, etc. It is used in closed-circuit alarm systems and initiates an alarm when a vibration of considerable force strikes the protected surface. The vibration sensor works with the Eaton Powerware Environmental Rack Monitor (ERM) and connects to the TH-Module. Through the ERM, the user can monitor if there is any situation of vibration.