Advantage Ignition Interlock is located in Topeka, Kansas. Bring your vehicle to us for the installation of a Drager Interlock XT system, an accurate alcohol Breathalyzer for your car or truck. Our Interlock has a total testing time of 6 seconds. The Interlock XT has an LC display that prompts the driver with full text messages available in several languages; there are no codes the user has to decipher. Our certified technicians guarantee 100% customer satisfaction with every installation process.