Multifunction: The 2-in-1 Vacuum Pump Tester Suite is equipped with a vacuum gauge to help you accurately read data. Pressure 40 PSI, vacuum 20 HG. It includes accessories for brake deflating and automotive diagnostics. Vacuum Pump Kits test and diagnose various components and universal systems on bicycles, motorcycles, trucks, pickups or any other vehicle. Rugged construction: made of high-quality stainless steel to ensure the durability and high performance of the brake relief kit, a comprehensive vacuum pump tester kit allows the testing of many vacuum operating systems. Single operation: Our brake bleeder kit is suitable for sucking out waste oil and air, and guiding the new oil to fill all the system.