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 Caldwell, ID. We are committed to helping our customers achieve their ignition interlock requirements and get back on the road.

Guardian Ignition Interlock is ID’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 3510 Lake Ave is ID certified with expert technicians for all your interlock installation and calibration needs.