Fuel Injector Cleaner Tester 6-Cylinder 14 Test Modes 12V, Ultrasonic GDI/Piezo/Motorcycle Injectors, 0-10 bar, 0.1-25ms, Resistance, Leakage, Auto, On-Vehicle Cleaning, Digital Display. Automatic pressure relief, overheating protection, and leakage protection ensure safe and worry‑free operation.