This automotive smoke machine is a must-have for vehicle maintenance. With a built-in air pump and a 12V DC power supply, it's designed for accurate leak detection. Measuring 12. 25 x 9 x 7. 5 in. and weighing 6. 8 pounds, it's compact yet powerful. It has multiple functions, including pipe system, car sealing and fuel tank system tests, suitable for cars, motorcycles, light trucks and boats. The dual-mode operation (air and smoke) allows it to produce fog in just 4 seconds. It uses baby oil or mineral oil to generate harmless smoke, ensuring safety. The overheating protection feature automatically shuts it down at extreme temperatures. Weighing only 2. 8kg, it's easy to carry and store, bringing great convenience to your vehicle maintenance work.