General description The QDB 3A 12-24V Ignition Coil Test Injector Tester is a versatile diagnostic tool designed for automotive applications. It allows users to drive and test various components such as ignition coils, fuel injectors, solenoid valves, and stepping motors, making it an essential device for troubleshooting and diagnosing automotive faults. Technical specifications Power supply voltage range: 12V-24V Electromagnetic coil driving current range: 0-3.5A Output frequency range: 1Hz-100kHz Duty cycle adjustment: 1%-100% Adjustable voltage: 1.25V-11.5V Usage Drive test ignition coils, including ignition and module types. Drive test fuel injectors for gasoline-powered cars (12V and 24V). Drive and test solenoid valves and fuel metering valves controlled by duty ratios. Drive and test motors controlled by duty ratios, including urea pump motors. Drive and test idle stepping motors and instrument stepping motors. Generate Hall signals with adjustable output frequency, amplitude,