Nationwide Interlock is a Michigan based company with several conveniently placed locations throughout Michigan, Wisconsin, Minnesota, Tennessee and Florida. We offer same day as well as weekend appointments. We have a tech support help line to assist the client with scheduling, payment, installation, removals or technical support. We have the privilege to work with Draeger, a worldwide leader in the manufacturing of Ignition Interlock Devices. We offer the Draeger 7000 which can be easily installed in any automobile by one of our certified service technicians.