Multi-Metric Display: It reads out four distinct diagnostic parameters: Air/Fuel Ratio (A/F), Oxygen Sensor Voltage (O2), Battery Voltage (BAT), and Countdown Time (TIME).Control Interface: Features a unique compact black pen-style design with a red LED screen and a multi-angle joystick toggle knob to browse menus and change settings.Dual Operation Modes: Supports both manual countdown presets (0 to 10 minutes) and automated intelligent calculation based on driving patterns