K3504 - Extend the alarm time

Kits Automotive projects
1

Hello,

first of all, sorry for this english, it’s not my language.

I want to buy a K3504 kit for car alarm but I would like to change a parameter. Being new, I really need your help! :slight_smile:

I would like to extend the alarm time that is announced to 60 secodes. I wish it was at least 5 minutes.
But I do not know if I have to change a transistor or Flip Flop for example.

Can you help me? :slight_smile:

Thank you so much :slight_smile:

2

You can change C11 to 220uF
this is according to our calculations this is not tested.

Side note: legally an alarm should only go off for max 60 seconds.

Best Regards,
VEL337

1 Like
3

Hello,

thank you for your reply :slight_smile:

Other small things. Is it possible to put a drive in place of C11?

Is it possible to connect it with a 951- ULTRASOUND DETECTOR and an ELECTRONIC SHOCK CONTACT SENSOR DETECTOR VIBRATION?

A bit like a K3511 which unfortunately no longer exists.

Thank you so much :slight_smile:

4

Hello,
Only a capacitor can be connected for C11
You can use any detector if it introduces a voltage dip on the battery

example activate a 20W or higher bulb

5

Hello,

Ok thank you :slight_smile:
What is the voltage of C11? :slight_smile:

6

C11, 25V or higher please

7

Hello,

thank you :slight_smile: