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How to Protect the Car’s Undercarriage?

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=45682
Printed Date: May 17, 2025 at 6:55 PM


Topic: How to Protect the Car’s Undercarriage?

Posted By: antol11
Subject: How to Protect the Car’s Undercarriage?
Date Posted: December 21, 2004 at 10:11 AM

Hi,

I will be installing an alarm system for a friend and he is really concerned about is protecting his car from someone tampering with the underside of his car,  i.e. cutting his brake lines, explosive devices, etc.  In your professional opinions what is the best way to get this type of protection?  I was going to install 2-3 DEI 508D proximity sensors underneath the car (I would make enclosures for them to protect them from the weather)?  Will this work?

Also on the 508D packaging it states that metal does not effect it's performance.  Does this mean that the sensor can penetrate through metal?  Or does it simply mean that installing it on or near a metal surface won't effect it's field of protection?

Thanks in advance,

Bogdan




Replies:

Posted By: daniel2002p
Date Posted: December 21, 2004 at 11:25 AM
it means that the signal will go through the metal, I have one on my truck and if you get close it gives a warning, and too close, the alarm goes off, even under the truck.

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2005 Toyota Corolla S
    1.8L VVT-i I-4
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