After-tuning alarm systems start with a default intrusion detector and a siren alarm that can send a text message when the vehicle is stolen and allows you to track it the exact location using GPS and sending commands sent via a mobile phone to lock a vehicle, lock the doors smoke screen, or any other programmable operation.
The high quality basic car alarm system includes an immobilizer if it is not already equipped and output to the central locking system, so if you arm the alarm on the alarm, all doors will be closed. Some car alarm systems can use the existing central locking remote control, so if the remote control is sent to the lock signal for alarm, arm and disarm it if the doors are open. Moving from the basic security system a Thatcham car alarm system is approved by the UK automotive insurance professional so it is appropriate to take into account the savings in motor insurance. All Thatcham alarm systems must be fitted with a qualified technician who completes the Thatcham certificate that must be shown to the engine insurer.
Probably the best car alarm system currently available on the market uses a mobile phone, both alerting the theft owner and providing location information and remote control security features from the cellular phone itself. These car alarm systems allow the owner to immobilize the vehicle, but for safety reasons, the engine only declines when the vehicle is in a position at a point in its path, other remote control functions; locks, sirens and dangers, smoke filters, fixed messages etc. You can add a radio or text answering machine to an existing car alarm that allows you to know that the radio pager usually offers a one-mile guarantee band but you can continue to work , but the cell phone can know about it anywhere. Other accessories that can be added to the car alarm system include tilt and motion sensor, glass break detector, dual zone pre-warning, auto window blocking and so on.