Security Alarm Systems are a group of electronic devices that
detect intrusions and attempted intrusions into a protected
premise. All devices are connected to a main control panel. The
devices when detecting an intrusion may also activate a sound siren
device. An Alarm system may be monitored which means it will send
signals to a monitoring station or it may be local meaning that
only a sound device (siren) on site is activated. To be monitored,
the system must be connected to an analog land line or equipped
with radio backup or internet module. A monthly fee applies to
monitored systems
