In the event of the system being armed the alarm will ring for a pre-programmed length of time before silencing and re-alarming itself. If the system is unset and a fault occurs all you need to do is enter the code to stop it.
In the event of the system being armed the alarm will ring for a pre-programmed length of time before silencing and re-alarming itself. If the system is unset and a fault occurs all you need to do is enter the code to stop it.