You can also opt to install alarms a la carte. Glass break alarms activate when an intruder attempts to enter your home by breaking through sliding doors or windows. Other alarms can be placed under the rug or throughout the home in strategic areas that will activate should a burglar step on it. Also, a panic button can also be installed in your bedroom so that in the event that the burglar has entered your home, you can quickly and effectively notify the policeeven if the burglar has wisely cut your phone lines.