The Applus Technologies Smog DADdy is a Data Acquisition Device (DAD) product developed to perform inspections on most vehicles subject to smog inspections in California. This product has a BAR-compliant OBD interface, available in both wired and wireless versions. It can be purchased as a complete turnkey system with a field-proven laser printer, Windows operating system and much more. The Smog DADdy is the first on-board diagnostic products to receive certification by the California Bureau of Automotive Repair, according to the company.