Why We Choose FOXWELL ST2000 EVAP Machine?. Manufacturer Part NumberFOXWELL ST2000 Car Leak Tester EVAP Smoke Machine. [All-in-One Design with Built-In Air Pump]- Say goodbye to external compressors!The integrated air pump automatically adjusts pressure for both EVAP and Turbo modes, ensuring a quick setup and hassle-free testing wherever you are—making it the essential automotive tool for on-the-go diagnostics.