They prevent the wheel from being turned more than a few degrees. They are not infallable, but when used in conjunction with other crime prevention methods, may make your vehicle a less desirable target. Typically such systems include siren alarms, starter disablers, motion senors, remote control activation, panic buttons, and shock detectors on doors, windows, or trunk lids. A beeper can alert the owner when someone trips the system. These again can deter a thief who is looking for an easy target.
Prices range depending on the options an owner selects.
This page created and maintained by Jeanne Murdock Tripp . Last modified on August 4, 2000.