Crabi Gras

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.

Guardian Ignition Interlock is MD’s most affordable ignition interlock device. Guardian’s device is discreet and one of the easiest to use devices on the market. With over 30 years of experience, Guardian is one of the most trusted iid brands. Our location at 706 Cambridge Mkt Pl Blvd. Unit A is MD certified with expert technicians for all your interlock installation and calibration needs.

Smart Start is the #1 Ignition Interlock Device provider in Cambridge with same-day installation available for your vehicle. Were a convenient and affordable MD IID supplier located in Eastern Cambridge at 706 A Cambridge Plz with mobile services and price matching available to give you the best value. Our reliable customer service experts and licensed technicians will make your IID device experience quick & low stress. Smart Start is ready to schedule your Ignition Interlock Device installation in Cambridge. Call our Eastern Cambridge location & talk to a Program Advisor, who will help you schedule an appointment for your IID installation, calibration or removal.