Thinkcar Platinum 391 10-Inch OBD2 Diagnostic Scanner - Full System Scan Tool with Maintenance Reset Functions

The ThinkCar Platinum 391 is a 10-inch full-system diagnostic scanner built for professional technicians who need comprehensive coverage without paying flagship prices. It handles all the core professional functions — bi-directional controls, maintenance resets, live data streaming, and full system scanning — on a responsive 10-inch HD touchscreen running Android 10.

Where the 391 fits in the Platinum lineup: it sits between the entry-level S-series and the high-end 394/399. You still get professional-grade diagnostic depth with support for all major vehicle manufacturers, but at a price point that works for independent shops and mobile techs who need a capable daily driver without all the premium accessories bundled in.

Diagnostic Functions

• Full system scanning across all electronic control modules
• Bi-directional active testing — command actuators, run system tests
• Maintenance reset functions for oil, brake, SAS, TPMS, DPF, battery, and more
• Live data streaming with graphing capability
• Read and clear diagnostic trouble codes across all systems
• Freeze frame data analysis
• Auto VIN detection
• Wireless Bluetooth VCI communication

Specs

• 10-inch HD touchscreen
• Android 10.0
• 4GB RAM / 128GB storage
• 13MP rear camera
• Dual WiFi and Bluetooth connectivity
• Long-lasting battery

Includes 2-year passenger vehicle software updates. Compatible with ThinkCar modular accessories including thermal imager, work light, battery tester, and printer modules.

Why Buy From Us?

• Authorized ThinkCar distributor
• Free ground shipping
• Free tech support from trained diagnostic staff
• Full manufacturer warranty on every product

Questions? Call our diagnostic experts: (866) 217-0063 — we can help you compare the 391 against the 393 and S10 to find the right balance of features and budget.