| 摘要 |
A vehicle alarm system with a sensor for detecting a change in the alarm system from an armed not triggered state to an armed triggered state, an override switch operable only when the alarm system is in the armed triggered state, to stop the alarm from sounding in the armed triggered state, an ignition switch, an ignition sensor, and a controller for switching the alarm system from the armed triggered state to the disarmed state when the ignition sensor supplies a signal indicating ignition on while a timing circuit is activated and maintaining the alarm system in an armed triggered state when no ingition signal is supplied while the timing circuit is activated. |
