Sabvoton controller support alarm functions for all controllers. Some controller default without alarm function because some customers don't want this function. Alarm function are more popular for some countries to prevent theft. 

The mass order controller can be customized. 
For connection way, you can refer to below information.

- Key Feature of Alarm -

1) Motor Lock

2) Push alarm, when the vehicle moved, the alarm worked.

3) Vibration alarm

4) Alarm Speaker with 125dB Sound

5) Keyless start

6) Low level selection, Low level signal lock motor

Sabvoton controller alarm# anti-theft function# sabvoton anti-theft