QDB4A QDB-5A Car Sensor Tester Oscilloscope PWM Drive Multimeter

QDB4A Upgrade Professional QDB-5A Car Sensor Tester with Oscilloscope PWM Drive Multimeter Ignition Injector Simulator Step Motor Driver Diagnostic Scanner

Multi-Function Diagnostic Tool: Combines oscilloscope for signal testing, PWM drive output for solenoids and injectors, stepper motor drive for idle and instrument motors, and signal simulation for sensors like air conditioner pressure and rail pressure; supports quick identification of automotive component issues.

Built-in Multimeter Capabilities: Measures voltage (DC 0-30V), resistance (0-1MΩ), current (0-1.8A), capacitance (10nF-1000uF), and diodes; ideal for precise electrical checks without needing separate tools.

Adjustable PWM and Signal Output: Features frequency range of 1-100kHz, duty cycle 0-100%, and VPP 1.25-14.5V; compatible with 2-wire and 3-wire modes for testing urea pumps, ignition coils, electronic fans, and flow sensors.

User-Friendly Interface and Controls: TFT color screen displays waveforms and readings; includes mode switch knob, adjustable power output (up to 2.5A), and buttons for frequency/duty adjustments; powered by DC 9-26V input for 12V/24V vehicle systems.

Portable and Durable Design: Compact handheld unit with operating temperature range of 0-55°C; perfect for automotive maintenance professionals and DIY mechanics.

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