QDB‑3A Automotive Ignition & Actuator Tester | Professional Diagnostic Tool

Diagnose faster, repair smarter, and work safer with the QDB‑3A—the all‑in‑one automotive tester that replaces multiple tools to fix ignition, fuel injection, solenoids, stepper motors, and sensors in minutes. Built for mechanics, garages, DIYers, and fleet techs, it works on 12V & 24V gas and diesel vehicles alike. Key Functions �� Ignition Coil Testing Test independent, coil‑on‑plug, and module‑type ignition systems to quickly spot weak coils, misfires, and driver failures. ⛽ Fuel Injector Tester Drive and diagnose 12V gas and 12V/24V diesel injectors to verify spray pattern, response, and electrical health without removing parts. ��️ Solenoid & Actuator Drive Test duty‑cycle solenoids, fuel metering valves, idle motors, instrument steppers, headlight adjusters, urea pumps, and more. �� Sensor Signal Simulation Adjustable Hall‑effect signal (frequency, amplitude, duty cycle) to simulate pressure sensors, MAF, and other duty‑cycle inputs for ECU testing. ��️ Safe & Stable Design Input: DC 8–28V (works with 12V/24V systems) Reverse‑polarity overcurrent protection Coil drive: 0–3.5A PWM: 1Hz–100KHz, 1–100% duty cycle Adjustable output: 1.25V–11.5V Voltage/resistance meter: 0–30V / 0–1MΩ �� Portable & Durable Compact, lightweight case Clear controls for beginners and pros Rugged build for shop and field use Works on cars, trucks, vans, SUVs, and diesel equipment Who It’s For Professional auto technicians & repair shops Mobile mechanics & roadside service DIY enthusiasts & home garages Fleet maintenance for trucks & diesel vehicles Training centers & automotive students Item Specification Model QDB‑3A Input Voltage DC 8–28V (12V/24V compatible) Coil Drive Current 0–3.5A PWM Output 1Hz–100KHz, 1%–100% duty Adjustable Voltage 1.25V–11.5V Metering DC 0–30V, 0–1MΩ resistance Dimensions Approx. 16×10×3 cm Weight ~0.5 kg (with package) Warranty 12 months   Package Includes 1 × QDB‑3A Main Unit 1 Set Premium Test Leads & Accessories 1 × User Manual 1 × Gift Box 1 × 12‑Month Warranty Card Why Choose QDB‑3A ✅ All‑in‑one diagnostic tool – saves time and money ✅ Wide vehicle compatibility – 12V/24V, gas/diesel ✅ Safe, protected circuits – no damage to vehicles or tools ✅ Easy to use – no complex training ✅ Portable & tough – shop‑ready and field‑proven Upgrade your diagnostic toolkit today. Fix faster, diagnose smarter, and get vehicles back on the road quicker with QDB‑3A.