Integrity Interlock provides installation, service and leasing of the Draeger ignition interlock system. We are certified to install and service the ignition interlock device throughout Wisconsin. We are Wisconsin’s #1 IGNITION INTERLOCK PROVIDER. We currently have locations in Green Bay, Appleton, Oshkosh, Fond du Lac, Sheboygan, Glendale (Milwaukee), Madison, Kenosha and Janesville, Wisconsin. We will beat any competitors pricing in any county that we do business in. Guaranteed. No hidden fees. Ignition interlock devices in Wisconsin.