B03 Wireless Bluetooth Adapter | Professional Vehicle Communication System
The B03 is a streamlined, high-performance vehicle communication system designed to provide a fast and stable wireless link between your car’s ECU and your favorite diagnostic applications.
By leveraging reliable Bluetooth technology, it turns your smartphone or tablet into a powerful diagnostic hub, allowing you to monitor engine health and performance data without the restriction of cables.
Built for both daily drivers and professional fleet managers, the B03 offers a "plug-and-forget" experience in a compact, lightweight housing.
Why the B03 is a Reliable Choice
Seamless Vehicle Communication: The B03 acts as a high-speed vehicle communication system, supporting all 9 mainstream OBD II protocols (SAE J1850, ISO9141-2, and CAN). This ensures effortless data retrieval for a wide range of gasoline and diesel vehicles.
Stable Bluetooth Connectivity: Experience consistent, lag-free data transmission. Whether you are performing a quick fault-code scan or monitoring live engine stats during a trip, the B03 maintains a solid wireless connection.
Ultra-Compact & Practical: At just 67.5mm in length and weighing only 45g, the B03 is designed to fit securely into the OBD II port without interfering with the driver’s legroom or vehicle operation.
Multi-Platform Flexibility: Easily pair the B03 with various diagnostic software on mobile devices or laptops. It is the perfect tool for workshops, software developers, and fleet inspectors who need a versatile, cable-free solution.
Built for Longevity: Despite its lightweight design, the B03 is constructed for repeated use and continuous monitoring, making it a dependable choice for distributors and bulk deployment.
Core Diagnostic Capabilities
Engine Fault Detection: Instantly read and clear Diagnostic Trouble Codes (DTCs) to troubleshoot engine issues and reset the "Check Engine" light.
Live Data Stream: Monitor real-time parameters such as engine RPM, fuel system status, coolant temperature, and intake manifold pressure.
I/M Readiness Check: Verify if your vehicle is ready for official emissions and smog testing with a quick status check.
Vehicle Identification: Retrieve VIN, CALID, and CVN data directly from the vehicle’s ECU for accurate records and parts matching.
Technical Specifications
Feature | Detail |
Model | B03 |
Connection Type | Wireless Bluetooth |
Main Function | Professional Vehicle Communication System |
Protocol Support | All 9 Standard OBD II Protocols (SAE, ISO, CAN) |
Product Size | 67.5 × 46 × 25.5 mm |
Net Weight | 45 g |
Efficiency Note
The B03's energy-efficient Bluetooth design allows for long-term monitoring without excessive battery drain, making it a practical choice for users who wish to keep the device connected during daily commutes to track driving performance and fuel efficiency.
Upgrade your diagnostic toolkit with the B03—the compact, reliable bridge for your vehicle communication system.


- Shipping Policy
- Return Policy
1. Shipping Locations
We provide international shipping to customers worldwide, covering the following regions:
North America: United States, Canada.
Europe: United Kingdom, European Union countries.
Oceania: Australia, New Zealand.
Asia: Southeast Asia, Middle East.
2. Shipping Fees
Free Shipping: We offer Free Standard Shipping on all orders over $69.
Standard Shipping: For orders under $69, a flat shipping fee of $9.99 will be applied at checkout.
3. Order Processing & Delivery Time
Order Cut-off Time: 5:00 PM (GMT+08:00) China Standard Time.
Handling Time: 1–3 business days (Monday to Friday).
Transit Time: 5–12 business days (Monday to Friday).
Total Delivery Time: Estimated 6–15 business days.
4. Tracking Information
Once your order is dispatched, a confirmation email with a tracking number and a tracking link will be sent to your registered email address. You can monitor your shipment's progress in real-time.
5. Customs, Duties & Taxes
Prices displayed on our website do not include import duties or local taxes. The recipient is responsible for all customs clearance procedures and any associated fees required by local regulations.
6. Lost or Damaged Shipments
If your package is lost in transit or arrives damaged, please contact us at service@chepq.com within 7 days of the scheduled delivery date. We will coordinate with the carrier to provide a replacement or a refund.




