Low Cost Interlock offers the easiest, cheapest, fastest, most reliable ignition interlock device (IID) for your car. Our ignition interlock system allows you to effortlessly achieve your ignition interlock restriction and get you back on the road. Visit Car Stereo City - Beaverton at 17825 SW Tualatin Valley Hwy for the most convenient interlock installation in the Beaverton, OR area.