The Blue Point YA252 EGR Valve Tester is a diagnostic tool designed to test the Exhaust Gas Recirculation (EGR) system in vehicles. Manufactured in the United States, this handheld tool from Blue Point provides mechanics and auto technicians a reliable way to determine if the EGR valve is functioning properly, ensuring optimal engine performance and reduced emissions. The comprehensive testing capabilities of this product make it a valuable addition to any automotive tool collection.