Car alarm sensor

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leapahead

Member - Posts: 3

Joined: May 30, 2017

Location: Greece

Posted: May 30, 2017 at 11:38 PM / IP Logged

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

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leapahead

Member - Posts: 3

Joined: May 30, 2017

Location: Greece

Posted: May 31, 2017 at 2:56 AM / IP Logged

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

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leapahead

Member - Posts: 3

Joined: May 30, 2017

Location: Greece

Posted: June 02, 2017 at 2:19 AM / IP Logged

?

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shift_happens

Member - Posts: 45

Joined: November 25, 2013

Location: Quebec, Canada

Posted: June 02, 2017 at 11:47 AM / IP Logged

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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