Monitech Ignition Interlock is Raleigh's original ignition interlock device provider for over 30 years. Our car breathalyzer/ignition interlock installation service centers are certified by the NCDMV, and we have many locations throughout North Carolina. Our technicians will help you navigate NC’s interlock requirements so you can get back on the road quickly & safely. Our easy process makes Monitech the best choice for low-cost, high-quality IIDs. Get your free installation today! All Monitech products include local, dedicated 24/7 customer support.