| Summary: Car alarms have integrated the latest | | | | commonly use. One common window sensor is a |
| technology into the car alarm system. So, how does | | | | breaking sound detector. The sound of breaking glass |
| it work? Car alarm is an everyday occurrence; you | | | | has its unique sound frequency that the system |
| just get to see it everyday. When an approximate of | | | | detects, and if triggered releases a full alarm siren. |
| one car gets carnapped every 20 seconds, it is | | | | Another car alarm feature is the shock sensor. The |
| common occurrence indeed. Car alarms, in an effort | | | | early models are two horizontal charged rods of |
| to get ahead of car burglars, have integrated the | | | | metal which if the car is disturbed, will sway and |
| latest affordable technology into the car alarm | | | | touch each other completing the circuit and setting |
| system. So, how does it work? | | | | the car to alarm. There are difficulties with this |
| The first documented case of car theft was as early | | | | though. Every time the car is disturbed, the alarm |
| as 1896, only a decade after the Otto gasoline | | | | goes off no matter the cause. Slight disturbances like |
| powered automobile was patented by Karl Benz of | | | | a slight weight shift from an individual leaning on the |
| Germany. To combat this situation, car alarm | | | | hood can cause full car alarm. Recent models are |
| systems are installed on automobile doors. So the | | | | released, like Randall Woods shock sensor which, by |
| first ever car alarm system was typically a car door | | | | its construction, is more falsealarm proof. |
| alarm. But with todays cars, its much more | | | | So concisely most modern car alarm systems include |
| sophisticated. Car alarm systems have sensors that | | | | a range of pressure sensors that are electrical |
| go off every time a panel is opened the panels can | | | | conduits all around the chassis that goes off when |
| be the doors, the hood or the trunk. These sensors | | | | the circuit is severed. By opening a door or a trunk, |
| are actually voltage that travels around the vehicle | | | | the electricity is severed and full alarm goes off. Car |
| including doors, trunk and hood. If this circuit is | | | | glasses are made more resistant to bashing. Also, the |
| broken by forced opening of a panel or a voltage | | | | system includes a glassbreaking detector that goes |
| dropped due to interference with the electrical | | | | off to the frequency of breaking glass. |
| system, the alarm goes off. | | | | Since 1896, car thievery was second to none most |
| Car windows are also one focal entry point for | | | | rampant thievery cases every year. Getaway vehicle, |
| thieves. Most occasions they just bust the windows | | | | easy to break in, always in demand, and with a little |
| and hot rod the car; quite effective, too. New glass | | | | bit of repainting can attract any interested buyer. But |
| technology made it possible for glasses to withstand | | | | with the present state of the art technology, car |
| an amount of bashing. Glass reinforced with plastic is | | | | alarm systems can stay up ahead with thievery. |