US Patent 7339475 Portable alarm system

A monitoring system includes a portable alarm having a base unit with an electronic package. At least one sensor is associated with the electronics to transmit signals to the electronics in the event of a breach. The electronic package in turn signals a central monitoring station, as well as transmits a signal to an audible or visual alarm coupled with the base unit. Also, the base unit includes a device to selectively program the electronics to enable the user to utilize particular programs. A bracket, which retains and secures the base unit, may be secured to a surface to enable desirable positioning of the base unit within a structure.