The ENFORCER Mini Shock/Vibration Detector is designed for protection against forced entry by a hammer, saw, crowbar, etc. through walls, ceilings, windows, safes, cabinets, etc. For use in closed-circuit alarm systems, it will initiate an alarm when a vibration of considerable force strikes the protected surface. A built-in tamper switch is independently wired from the vibration detector for enhanced security. Vibration contacts are adjustable to respond on any surface – glass, wood, steel, plasterboard, or brick. Pure silver contacts with gold plating ensure years of long-term operation. Its compact, dust-tight ABS case is easily mounted with double-sided adhesive tape.