re viper car alarms mcrosbie batman bmd trw com writes in article c fr cdo cs uiuc edu u cs uiuc edu ronald e garnett writes hello auto enthusiasts stuff deleted viper also sells some fancy field disturbance sensor that supposedly detects people approcahing the car this is primarily for convertibles i have a convertible and have looked at this feature in detail alpine actually makes a better radar unit if you want to get one of these it has zones in it that can be shut down independently so that if one side of your car has pedestrian traffic or something else that would trigger an alarm it shuts down the zone or rather pulls it in tighter i don t see the real benefit to these unless you have a convertible that you leave the top down on avoid the voice alarm that can be added to the radar package it talks to people as they walk by i saw one installed on a lotus esprit the kids would taunt it seeing how close they could get before it warned them to get back the owner finally disabled it which defeats the purpose in my mind stuff deleted ron garnett more stuff deleted merrill my neighbor runs a viper r distributorship and installs them on all saturns sold in my area anne arundel county md he has an sc with the viper voice alarm installed the alarm does everything turn on the car the radio the heater roll down windows unlock the doors the alarm goes off more frequently on hot days when a person walks by it gets sensitive up to about feet in degree heat it isn t as bad as convetional siren alarms because it doesn t continue to wail it just says protected by viper please stand back and shuts up mainly because the person walks away befuddled chintan amin the university of illinois urbanachampaign mail llama uiuc edu sig under construction hard hat area
