The PG9935 Wireless PowerG Shock Detector provides perimeter protection for residential and commercial premises. It provides early warning of an attempted intrusion by sensing forced entry before a burglar actually enters the property. This potentially reduces the damage and losses to a property as a result of a break in and provides home and business owners with enhanced security. The PG9935 also includes an optional magnetic contact. The magnetic contact protects door/window openings and alerts if an intruder tries to mask the magnetic field of the contact. Additionally, the PG9935 includes an optional auxiliary input in which the connection of other hardwired devices can be made. The auxiliary input is configurable to be Normally Open, Normally Closed or Single End-of-Line.