Car alarms usually works by emitting large amounts beeps or other type of various sounds, according to the most customization for the user. In some cases, car century, is used to trumpet warnings or pre-recorded sounds. Not start car alarms by the spectra of signals. These include the vibrations of any kind, and open the bonnet or boot. Touching the door or any part of the car can cause the car alarm to go off. In some cases, such as car alarms accompanied by flashing lights of the car. If you are one with the fetish for full control and we want the complete security so that you can customize the settings for the car alarm system with pager so that you get informed you as soon as someone tries to tamper with your car lover.