【Powerful and Complete Fuel Injector Testers Set】Our injector tester is the most versatile and adaptor kit on the market today, effectively helping you to diagnose injector problems such as: stuck, leaked, blocked, damaged or burned in the case of engine shutdown, effectively solve the problem of carbon accumulation in the injector, leakage and loose shutdown 【LCD Display Shows 8 Pulse Modes】The 8 pulse modes consist of 4 pulse signals and two output voltages: short, medium, long, continuous pulse + high and low (12V/5V) power drive mode, giving you more testing options. You can monitor the current mode on the LCD display, and our mode lock function prevents you from accidentally making a mistake and causing wrong results 【Different Sizes of 6 Adapter Cleaning Tools with Wide Compatibility】Our auto fuel injector tester comes in 6 sizes of cleaner adapters, including aperture 9.8mm each. 10.8mm, 11.8mm, 12mm, 13.5mm and BMW N Series nozzle with threaded holes. Including but not limited to: MPFI/SPFI/TBI/FSI/L-JET/LPG/CFI/EFI/CFI and so on 【Test and Clean Two Injectors Simultaneously】Our DIY fuel injection is designed with 4 pulse output terminals that can be connected to two injectors at the same time. The test wire length is 33 inches. The test wire and power cord are made of high-quality copper wire and plastic to ensure accurate and safe testing 【Clean and Test Safely】Our injectors tester has power input reverse protection and output short circuit protection functions. The flashing of the power indicator on the instrument reminds you that the injector is damaged or the pulse output is short circuit, which brings protection for your injector. Good Injector Cleaning Helper: This car injector adapter set can help you diagnose injector problems and determine whether the injectors are clogged, leaked, damaged or burned. The tester can be easily used with fuel injection cleaner to rinse the injectors. The injector tester can be powered by the vehicle's 12V battery or external DC 12V adapter.