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Question:

do you know about car alarms and or just purchased a car alarm? need help please.?

hi.my car was just broken into last week.they broke my back window apparantly because they knew that (i guess most alarms) are only triggered by the front windowsso i am now, being forced into the market of car alarms. and probably after my 18th birthday firearms.heh. but i had a couple of questions. mostly i want a car alarm with a key chain that tells me if my car is being broken into. i understand it takes about 4 minutes for someone to take your radio and jet, but that is a major feature that i want to have. what is that technology called?other than that can you recommend other features i might look for? are there sensors for my back window?id appreciate ANY input. i am trying to get this pretty soon. thanks so much.

Answer:

They don't contain iron.
If it doesn't 'stick' to a magnet, it is non-ferrous.
All the metals that you can think of, other than iron.
car alarms do not monitor certain windows, they have a glass break sensor that goes off if any window is busted.

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