This smoke machine automotive leak detector is a must-have for vehicle maintenance. With dimensions of 8. 66 x 12. 2 x 12. 2 in. and a weight of 4. 69 pounds, it's compact yet powerful. It doesn't have an internal air pump, so you need to connect it to an external workshop air source and a 12V vehicle power supply. Just turn the flow control dial counter-clockwise, switch on the power and it starts generating smoke. The external flow meter allows you to control air pressure precisely, protecting your car's pipes. It can detect leaks in various systems like EVAP, intake and exhaust. Suitable for American cars since 1996, as well as motorcycles, snowmobiles and more. It helps diagnose engine problems such as vacuum hose ruptures, blockages and air leaks, saving you time and money on repairs.