This automotive smoke machine leak detector covers low- and mid-pressure testing needs for routine inspections. It helps diagnose emissions-related check engine lights by testing EVAP or vacuum systems at low pressure. It also locates small intake leaks using mid-pressure output. Basic adapters are included for common applications. All components store in the included bag, and the added hook allows easy hanging for better visibility. | Vevor | | Automotive Smoke Machine Leak Detector, DC 12V EVAP Vacuum Diagnostic Tester with Built-in Air Pump, Adjustable Pressure | Black;Orange | Best Buy