The car alarm system ADP-CAN is designed to work with an existing security system or an existing remote door central locking system as an additional security alarm system. The security system is designed using the highest quality components that ensure high quality and reliability of the system. The ADP-400 does not have its own radio control channel, which, on the one hand, improves ease of use by using only the existing remote control, on the other hand, improves its installation secrecy and protection against unauthorized disarming.