User-Friendly & Protected: Features adjustable VADJ power output (1.1-12V), bright 3-digit display readable outdoors, and wide input voltage (9-24V). Built-in reverse polarity & over-current protection ensures reliable, safe operation. (Use recommended 12V input).
Intuitive Operation: Independent resistance/voltage measurement via a clear 2.4-inch screen. Easily select test modes with the MODE button. Color-coded connection guides (yellow/blue lines) simplify setup for all skill levels.
Clear Visual Status: LED indicators instantly show active test mode: Green (PWM), Blue (Value/Injector), Yellow (Ignition Coil), Red (Stepper Motor). Quick identification enhances workflow efficiency.
Key Specs & Support: Input: 9-24V/100W. Outputs: VADJ (1.1-12V/1.5A max), Main (2.5A max), Stepper (1.5A max). DMM: 0-36V/0-1MΩ. PWM: 1-100kHz/0-100% duty. Operating Temp: 0-55°C. Backed by a 12-month warranty and dedicated support.
Complete Portable Kit: Includes QDB-4A tester, power cable, 3 test cables, 4 single plugs, idle stepper plug, and stepper welding cable. Compact, lightweight design is easy to carry and store anywhere.
Shipping takes place within 3-5 business days. If there is a problem with the shipment of the product, we will notify you via the email address you entered when ordering.
🚗 Is free shipping available?
We do not currently offer free shipping. However, this may be added at some point. We apologize.
🚗 How can I get a tracking number for my order?
If your order has been shipped, we will add the tracking number to your order and notify you via the email address you entered when ordering.
🚗 How do I process a return or exchange?
For returns or exchanges, please contact us within 14 days of receiving the product, along with a receipt or screenshot of the purchase, and a photo of the product with the packaging or tag intact.
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