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Car alarm features with break beam triggering

Off the shelf?

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Does anyone know how to combine the alarm alert sounds of a typical car alarm, that is triggered by breaking a 'beam' of some sort?

This is simple James Bond stuff, I thought the internet would have hundreds of these, available to install and plug-in and that's it.



What I am looking for is a narrow horizontal beam with a larger vertical detection area. The perfect thing would project from inside a lattice type enclosure and spread out vertically to about 6-8 feet, at a distance of 25 feet.


If this 'beam' is interrupted for less than a second, it will alert the same as a car alarm (5 second to 15 second burst)


If the 'beam' is interrupted for more than a second it will alert same as a car alarm and will continue to alert for 5 minutes, give or take.


Alarm alert sounds can be switched off with remote (just like your car alarm)


System needs to powered by regular home outlet.


I expect this is Jr. High electronics type stuff and shouldn't cost more than$100.

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    Je suis Napoléon!

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what you want to search for is called a light curtain. they're used in manufacturing facilities everywhere. basically if you break the light beam, it does a thing. the thing that it does is completely based on the device used to read the signal from the light curtain. the light curtain itself is basically a switch. when the beam is interrupted it sends a simple signal saying that it is interrupted....then you have to programmatically process that state on the other end.


you could get some kind of light curtain and use it with an arduino (or similar device) to handle the signal processing. I'm sure you can even find instructions for a DIY light curtain somewhere.

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