MS309 Pro: Enhanced Diagnostic Trouble Code Reader with Live Data
The MS309 Pro is the definitive upgrade to the classic handheld scanner, engineered for those who need more than just a basic check-engine light reset. As a comprehensive diagnostic trouble code reader, the Pro version adds high-value features like real-time data stream analysis and dedicated battery health monitoring, making it an indispensable tool for preventive vehicle maintenance and accurate troubleshooting.
Whether you are a professional technician or a DIY enthusiast, the MS309 Pro offers a faster, more detailed look into your vehicle’s ECU than standard entry-level tools.
Advanced Features of the Pro Series
Enhanced Fault Analysis: As a high-precision diagnostic trouble code reader, the MS309 Pro not only reads and clears DTCs but also allows you to view Freeze-Frame data—capturing the exact vehicle parameters at the moment a fault was triggered.
Real-Time Live Data Streams: Move beyond static codes. Monitor your vehicle’s operating conditions in real-time, allowing you to track engine RPM, coolant temperature, and fuel trim while the engine is running.
Comprehensive Battery Health Suite: Avoid unexpected breakdowns with integrated battery voltage detection and monitoring. The MS309 Pro provides a real-time battery life assessment, helping you evaluate your charging system directly through the OBD interface.
Ready for Inspection: Quickly check your I/M Readiness status to ensure your vehicle is emissions-compliant and prepared for its annual smog test.
Rugged & Portable: Weighing only 257g, this handheld unit is designed for the workshop environment, providing a large, clear display for easy data reading.
Core Capabilities
DTC Reset: Instantly turn off the "Check Engine" light (MIL) and clear stored codes.
Vehicle Info Retrieval: Access critical identifiers including VIN, CALID, and CVN with a single click.
Global Language Support: Features 10 built-in languages (English, German, French, Spanish, etc.), making it a perfect solution for international markets and workshops.
Technical Specifications & Logistics
Feature | Detail |
Model | MS309 Pro |
Main Function | Diagnostic Trouble Code Reader + Live Data |
Battery Features | Voltage Detection, Monitoring, & Life Assessment |
Net Weight | 257 g |
Languages | 10 Supported (Global Edition) |
Carton Quantity | 50 Units per Carton |
Carton Size | 43 × 36 × 31.5 cm |
The Smart Choice for Routine Maintenance
The MS309 Pro balances the simplicity of a handheld device with the technical depth of an advanced scanner. By combining standard OBD2 functions with live data and electrical system analysis, it ensures that your routine diagnostics are both comprehensive and efficient.
Don't just read codes—understand your vehicle's health. The MS309 Pro is the reliable, high-performance diagnostic trouble code reader your toolkit needs.
- Return Policy
- Shipping Policy
1. 14-Day Return Guarantee
We offer a 14-day return window. You have 14 days from the date of delivery to request a return for your item.
2. Eligibility Criteria
To qualify for a return, the item must meet the following conditions:
The product must be in its original, unused condition.
All original packaging, tags, and accessories must be included.
A valid proof of purchase or order number is required.
3. Return Shipping Costs
Defective or Incorrect Items: If the return is due to a manufacturer defect, damage upon arrival, or the wrong item being sent, CHEPQ will cover all return shipping costs.
Change of Mind: For returns due to personal preference or accidental orders, the customer is responsible for the return shipping fees.
4. Return Process
Email service@chepq.com to initiate your return request.
Upon approval, you will receive specific instructions and the return warehouse address.
Do not send items back without prior authorization, as they will not be accepted.
5. Refunds
Once we receive and inspect your returned item, we will notify you of the approval or rejection of your refund. Approved refunds are processed automatically to your original payment method within 5–7 business days.
6. Contact Information
For any questions regarding shipping or returns, please reach us at:
Email: service@chepq.com




