... passive ,prevent sectional yards ,prevent removal ,easy operation Anti theft system for car 1.Features Automatic After 15 second turn off the ... DI ' two short sound,anti-theft system relieve,30 seconds to initiate vehicles.enter anti-theft Engine downtime for 15 seconds ... DI "two sound short sound.Anti-theft system re-opened,after 30 seconds into anti-theft state .automatic memory Alarms was without ...