car collision alarm

With the overcrowding that is a common feature of most car parks nowadays, the chances of coming back to one` s car and finding a dent in the bumper or one of the wings are quite considerable. It is particu-larly galling if the culprit has made off without acknowledging his guilt and leaving behind his name and address. The following circuit is designed to attract the attention of passers-by in the event of someone bumping into your car. Hopefully the guilty party will then be unable to escape in anonymity, and will be compelled to own up to his mistake.