Description: 【Fuel Injector Tester】:Fuel Injector Tester Adapter can help identify stuck, leaked, or burned out conditions. It can test each injector individually. 【4 Pulse Modes 】:Fuel Injector Tester are 4 pulse modes to aid in diagnosing injector problems and an LED display that will help you identify good injectors and bad injectors. Pattern lock feature ensures consistency of test conditions. If you want to change the pulse, press the Reset key, you can freely select the desired mode, and retest the injector. 【High Quality】:Vehicle Fuel Injector Tester made of high quality plastic material .The fuel injector tester test lead is 33 cm long. 【Note】:12V Fuel Injector Tester Adapter only suitable for gasoline vehicles, not suitable for diesel engines. The car engine must be turned off before using this instrument. 【Design】: It works with any fuel pressure tester.Runs off a 12V car battery. Working environment: 0-40°C. Package Includes: 1 Fuel Injector Tester Adapter Note: Please allow slightly errors due to manual measurement and different monitors.