• 【Battery Test & Analysis】Monitors voltage curves and evaluates battery life to detect performance decline before failure.
• 【Quick Code Reading】Reads and clears engine fault codes, monitors real-time data including RPM, temperature, and fuel trim for confident repair decisions.
• 【Plug & Play Operation】No app or account required, simply connect to the OBDII port and view results on the 2.8-inch backlit color LCD screen.
• 【Wide Compatibility】Works with most 1996 and newer OBDII-compliant cars, SUVs, and light trucks, supporting SAE J1850, ISO9141-2, KWP2000, and CAN protocols.
• 【Portable Handheld Design】Compact and lightweight, easily fits in a glove box or tool kit for quick roadside diagnostics anytime.

Specifications:

• Item Model: YM109
• Display: 2.8-inch Color LCD
• Interface: OBDII 16 Pin
• LED Indicator: 3-Color LED (Green/Yellow/Red)
• Dimensions: 5.43 x 2.75 x 0.78 inch
• Supported Protocols: SAE J1850 PWM/VPW, ISO9141-2, KWP2000, CAN
• Functions: Read Codes, Clear Codes, Freeze Frame, I/M Readiness, O2 Sensor Test, Battery Test, Data Stream, Vehicle Info, Performance Test, DTC Lookup
• Battery Test Functions: Voltage Measurement, Voltage Monitoring, Battery Life Assessment
• Operating System: ECU