✅【Specialized Fuel Injection Tests】 The PB500 Fuel Injection Test Mode is designed for fast, precise diagnostics of the fuel injection circuit. ✅【Switch Easily Between Test Modes-Clear Waveform & Digital Display for Faster Diagnosis】 Featuring a user-friendly interface that seamlessly switches between test modes at the push of a mode button, the PB500 can be quickly adapted to the specific needs of the circuit being analyzed.