Description Drive test ignition coils: including independent ignition, coil type, and modular type. 2. Test the fuel injectors: including 12V fuel injectors for gasoline vehicles and 12V and 24V fuel injectors for diesel vehicles. 3. Drive and test solenoid valves and fuel metering valves controlled by various duty cycles. 4. Drive and test various motors with duty cycle control, urea pump motors, etc. 5. Drive and test idle stepper motors, instrument stepper motors, headlight following steering stepper motors, etc. 6. The output frequency, amplitude and duty cycle of the Hall signal are adjustable, which is used to simulate various duty cycle sensors, such as air conditioning pressure sensors (duty cycle type). Air flow meters (duty cycle type), etc 7. Oscilloscope function Product specifications Model: QDB-5A Power input: D.C 8-28V Output power: 0-2.5A VADJ output: 0-1.5a Digital multimeter: D.C 0-30V/0-1M Pulse width modulation: 1-100 KHZ /0-100% Stepper motor: Maximum 15A Product dimensions: 157*98*30MM