Alcohol Detection Systems

Get back on the road confidently with Intoxalock, the trusted Ignition Interlock Device (IID) provider of Fontana, California and the no. 1 interlock device brand in the U.S.. Located in the Fontana neighborhood at 16846 Valley Blvd, we offer fast and affordable court-approved IID installation, calibration, and removal services. Our certified technicians ensure a smooth, stress-free experience while helping you stay compliant with California interlock laws. With 24/7 customer support, Intoxalock makes the process easy for drivers to regain their licenses after a DUI. Visit us in CA near you or call our state specialists to schedule your car breathalyzer installation and get back on the road safely!

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 Precision Sound at 4200 Chino Hills Pkwy for the most convenient interlock installation in the Chino Hills, CA area.

We specialize in car audio, car alarms, GPS tracking, dash cams, motorcycle audio, ATV audio, window tinting, HID lighting, LED lighting, custom fabrication, Ignition Interlock systems, and top tier installations. Over 20 years of experience. Master installer, with 100’s of certificates and trophies from our quality of work and designs. We are here to serve you and to make sure you leave with a smile.