Car Alarms – The Basics

product_thumb_031Do you know when was the first documented car theft? The answer might be surprising: in 1896! So, approximately after ten years after the first car was introduced. From then on, cars have become incredibly desirable targets for thieves. In light of this horrible statistic*, it’s not surprising to hear that millions of US citizens have invested in car alarm systems. In fact, it appears that each other car is equipped with expensive, sophisticated sensors, sirens and remote-control systems. So, what do modern car alarm systems consist of?

In its simplest form, a car alarm is a sensor (or sensors) connected to some kind of siren. It should have a switch on the car door(s) wired in such a manner that any opening of the door would make siren start wailing.

product_thumb_039Modern car alarm systems are, however, much more sophisticated than that. In general, they have more than one sensor (motion detectors, pressure sensors, switches), a siren (nowadays you are able to choose a distinct sound for your own vehicle), a radio receiver (because it has to allow remote-control from a key fob), auxiliary batteries (in order to allow alarm to operate even in case the main battery becomes disconnected) and a computer control unit (a sort of the brain of the system which should monitor everything).

In most advanced systems, a computer control unit is actually a tiny computer whose job is to close the switches which will activate an installed siren, horn, headlight and other alarm devices. The biggest difference between security systems are the used sensors, as well as the various devices wired into the computer control unit.

product_thumb_024*In the United States alone, a vehicle is stolen every 21 seconds. So, how to prevent car theft effectively? Please,log into to learn more on securing your beloved four-wheeled family member!


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