Guardian Interlock

RoadGuard Interlock offers ignition interlock devices (IIDs) for your car. Our IIDs are reliable and easy to use, and we offer installation services at our location in Cambridge, MD. We are committed to helping our customers achieve their ignition interlock requirements and get back on the road.

LifeSafer Ignition interlock is the leading ignition interlock provider nationwide and home to “No-Call Install”, the first fully online installation booking tool. LifeSafer’s locations are MD certified and our expert technicians at 706 Cambridge Mkt Pl Blvd. can handle all your installation and calibration needs. LifeSafer has over 30 years of ignition interlock experience and has helped over 1.5 million people get back on the road again.

Smart Start - Your Trusted Ignition Interlock Partner. Smart Start is the premier provider with a foundation built on superior product innovation with its easy-to-use Ignition Interlock Device (IID), and excellent, bilingual customer service available 24/7/365. Why Choose Smart Start? Smart Start has Ignition Interlock Installation Experts, Convenient Locations across CO, Flexible Scheduling, and Competitive Pricing. Regain your freedom with Smart Start's Ignition Interlock in Fort Collins, CO. Don't let a DUI hold you back. Contact us today to book your install!