The Vevor automotive smoke machine leak detector is designed to help locate leaks in EVAP, fuel tank, exhaust, intake, and other sealed vehicle systems. Its built-in air pump provides stable smoke output without requiring an external pump, making testing more convenient in the shop or on the go. Dual detection modes let you first confirm whether a leak exists and then pinpoint the leak location more precisely. A digital pressure gauge and flow meter help monitor testing conditions in real time. It is suitable for 12V cars, motorcycles, ATVs, light trucks, and boats.