As car security systems keep pace with the rapid development of other car electronics we are seeing more and more advanced components being incorporated into the standard build. The most common components are:

Key Chain Transmitter

Most car alarm systems use a portable keychain transmitter to remotely communicate with the control unit to do things like locking and unlocking doors, turning on lights and setting and disarming the alarm or to manually set off the siren.

In most systems, the control unit will flash the lights and tap the horn when you arm and disarm your car. This lets you, and anyone in the area, know the alarm system is working.

More advanced systems have a central computer and built-in pager system. When an intruder disturbs your car, the central computer pages your keychain remote and informs which sensors were triggered. You can then return a signal to shut down the engine, effectively acting as a car key.

For a particular line of transmitter devices, there are millions of different pulse codes to ensure your alarm system unique. Sophisicated car thieves can use code-grabbers to intercepts your "disarm code, and make a copy of your "key." using another transmitter. To avoid this, advanced alarm systems establish a new series of codes every time you activate the alarm. These rolling code algorithms mean a thief cannot use the code you previously used to arm or disarm to gain access to the vehicle.

Other Advanced Car Security System Components

More advanced systems will also have one or more of the following:

Ignition & Gas Cut Offs - shut off the ignition starter; cut off the gas supply to the engine or disable the car by other means.

Separate Siren - These advanced car alarm systems generally include a separate siren that produces a variety of piercing sounds. This brings attention to the car thief, encouraging them to flee.

Recorded Messages - Some alarm systems play a recorded message when somebody steps too close to your car. This is actually quite effective in letting the intruder know that the car has an advanced car alarm system BEFORE they try anything.

Built-in Radio Receiver - attached to the control unit that communicates an alert to a portable radio transmitter carried on the drivers keychain.

Extended Range - some transmitters will operate from up to one mile away.

Proximity Alert - used both for backing and for animals jumping out in front of the vehicle.

Camera Systems - such as Scytek Visionguard 8000

Onboard GPS Receivers

If the car has an onboard GPS navigation system, the receiver is connected to the alarm-system control unit to send location data to the police or other authorised agent to track your car at all times, or only if certain sensors trip the control unit.

Wiring Options

The computer control unit and alarm devices are normally wired into both the main car battery and an additional backup power source. This hidden battery kicks in when somebody cuts off the main power source. More advanced components can be added using remote outputs and connection harnesses.

Remote Outputs & Connection Harnesses

Remote Outputs & Connection harnesses allow you to expand the alarm's capabilities by adding features like a remote starter or window controls. Most alarms come with at least one remote output.

Using a Connection Harnesses you can add other features such as:

Ignition Disablers
Fuel Cut Off
Location Trackers
Remote door-lock control
Parking-light flash
Dome light activation
Trunk or hatch release
Remote engine start

More on Car Security Systems

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Car Security System Advanced Components