Car alarm sensor

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=143018
Printed Date: May 04, 2024 at 2:39 PM

Topic: Car alarm sensor

Posted By: leapahead
Subject: Car alarm sensor
Date Posted: May 30, 2017 at 11:38 PM

Hello guys i am new here, i have aftermarket car alarm that use shock sensor only one port (3 pin), and i want to ask if i can use Ultrasonic Sensor or any other sensor on this port.. Thanks

Replies:

Posted By: leapahead
Date Posted: May 31, 2017 at 2:56 AM

Or i can use 2 sensor? I read that must use diode to use 2 sensor? A Electrician can apply this?

Posted By: leapahead
Date Posted: June 02, 2017 at 2:19 AM

Posted By: shift_happens
Date Posted: June 02, 2017 at 11:47 AM

dual stage shock senor ports typically look for a pulse length on the trigger wires.

somethings like,
if pulse is short, this makes the alarm only give a warn away signal
if pulse is long, this makes the alarm go into full alarm

Typically, you can add as many sensors to those inputs as you want.
Diode isolate all devices (triggers) highly recommended to reduce any returns/feedback and/or damaging one sensor because the other is wonky.

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