This automotive smoke machine leak detector is designed to help locate hidden leaks in vehicle systems for faster diagnostics. It features dual testing modes, letting you check system sealing with air first and then pinpoint leak locations with smoke. Built-in dual air pumps deliver stable airflow and dense smoke for easier detection. A pressure gauge, flow meter, and flow control knob help identify both major and small leaks accurately. It is suitable for cars, motorcycles, trucks, boats, and ATVs.