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Article #724

Re: Motion sensors in car alarms

#724
From: Hal Bates
Date: Sun, 23 Feb 1986 03:51
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>   I don't know too much about auto alarms, but I can offer some advice...
>DON'T get an overly sensitive motion/impact sensor.  I live in Buffalo,
>N.Y. and at times it gets a bit windy.  There is a 1985 Nissan 300-ZX
>here with an alarm on it.  Every time the wind picks up to about 20 mph,
>it rocks the car a little bit and....BINGO!  You have one nice bright red
>car flashing its lights and making all kinds of racket, causing pedestrians
>to take a rather wide path around the car so as not to be suspected of 
>tampering with the car.  

I know the 300 Z's have a pretty mushy suspension, but are you telling me
that a 20 mph wind will move the car enough to set off a motion sensor?
Must be a poor design or a bad unit.

I have a Alpine unit with motion sensor (programmable), noise sensors on the
doors, door pins and hood pins sensors, a starter breaker, and a 5 digit code,
to keep the pricks out of my car. I had a $500 stereo unit removed while the 
car was parked in my driveway. No more of that shit. If the jerk can disable
this alarm, he can have it. The cost of the alarm was only $230. It feels
good to know that my stuff is now secure. If I have a complaint, it is that
the motion sensor, even on the most sensitive setting (for cars with stiff 
suspensions)  takes a real movement to set it off. Maybe the cheap units
are not as accurate as the Alpine. I always wonder why people try to save 
money in areas where the best is barely adaquate. 

Hal Bates
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References: <8927@ucla-cs.ARPA> <2858@sunybcs.UUCP>

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Path: arc1-ca.pugleaf.net!utzoo!linus!decvax!decwrl!glacier!hplabs!tektronix!tekig5!halb
From: halb@tekig5.UUCP (Hal Bates)
Newsgroups: net.auto.tech
Subject: Re: Motion sensors in car alarms
Message-ID: <511@tekig5.UUCP>
Date: Sat, 22-Feb-86 22:51:02 EST
Article-I.D.: tekig5.511
Posted: Sat Feb 22 22:51:02 1986
Date-Received: Wed, 26-Feb-86 08:08:33 EST
References: <8927@ucla-cs.ARPA> <2858@sunybcs.UUCP>
Reply-To: halb@tekig5tes.UUCP (Hal Bates)
Distribution: net
Organization: Tektronix, Inc., Beaverton, OR.
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