The Smoke Automotive Leak Locator is easily controlled with a timer setting and flow control. Set the timer then the machine will generate smoke, and control the flow with the flow controller. The output is regulated to 12-14 Inches of Water Column, this pressure is perfect to perform leak test of EVAP system and other automotive systems with no damage to the vehicle sealing Save time and fast leak detect: In most cases, a scan tool may find out pressure sensors abnormal etc., while actully the pressure low problem is caused by leak somewhere Multi-functio: The Smoke Automotive Leak Locator is a multi purpose tool essential for EVAP system, but also applicable for: EGR valves, Gaskets & Fittings, Hoses,Worn Throttle shafts, Break Boosters, Catalytic Converters, Oil Leaks, Lamp Housings, manifolds and more ... LED time indicator,Adjustabie air flow and I - 20 minutes adjustable operating tim: Adjustable timer and air flow to perform leak test on different system that requires different flow amount . Display Type: Digital Torch: 3 Color LED Pressure: 10-12PSI Smoke Flow: 10L/Min Power Supply: DC12/24V