Diagnose faster, repair smarter, and work safer with the QDB3Athe allinone 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, coilonplug, and moduletype 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 dutycycle solenoids, fuel metering valves, idle motors, instrument steppers, headlight adjusters, urea pumps, and more.
Sensor Signal Simulation
Adjustable Halleffect signal (frequency, amplitude, duty cycle) to simulate pressure sensors, MAF, and other dutycycle inputs for ECU testing.
Safe & Stable Design
- Input: DC 828V (works with 12V/24V systems)
- Reversepolarity + overcurrent protection
- Coil drive: 03.5A
- PWM: 1Hz100KHz, 1100% duty cycle
- Adjustable output: 1.25V11.5V
- Voltage/resistance meter: 030V / 01M
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 Its 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 | QDB3A |
| Input Voltage | DC 828V (12V/24V compatible) |
| Coil Drive Current | 03.5A |
| PWM Output | 1Hz100KHz, 1%100% duty |
| Adjustable Voltage | 1.25V11.5V |
| Metering | DC 030V, 01M resistance |
| Dimensions | Approx. 16103 cm |
| Weight | ~0.5 kg (with package) |
| Warranty |
12 months |
Package Includes
- 1 QDB3A Main Unit
- 1 Set Premium Test Leads & Accessories
- 1 User Manual
- 1 Gift Box
- 1 12Month Warranty Card
Why Choose QDB3A
Allinone 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 shopready and fieldproven
Upgrade your diagnostic toolkit today. Fix faster, diagnose smarter, and get vehicles back on the road quicker with QDB3A.
