
Alarm systems are fitted into vehicles to prevent theft of the car itself, or of its contents. When triggered, the alarm system is set to emit sounds which are often any one or a combination of the following:
Loud siren
The vehicle’s own horn (continuous sound)
Klaxon
The loud sounds can also be accompanied by flashing lights and may also trigger the interruption of one or more of the vehicle’s electrical circuits to prevent the car from starting.
Car alarms can either be:
Built-in
These are the stock alarm systems which have been pre-installed and ready to be used upon purchase of the vehicle; or
Third party
These are the systems which are installed upon the discretion of the vehicle owner, as chosen from a car alarm manufacturer.