Car alarm systems range from basic to highly advanced. Manufacturers distribute a wide variety, mostly one-way car alarms. Two-way car alarm systems are mostly distributed in developed nations.
Most car tracking system now employs the technology of Global Positioning System. It can track movements of stolen vehicles.
Many car alarm companies have highly advanced equipment and computer testing system to carefully test alarms before distribution. Alarms undergo simulation testers and temperature chambers to ensure reliability.
» Read more: Car Alarm Systems and the Leading Manufacturers