Impactresistant ABS housing provides durable protection against wear and reliable electrical performance in everyday use. Digital display and button operation panel shows ignition advance angle or engine speed for clear, ataglance readings. Fourbutton design enables switching between 4stroke and 2stroke modes, viewing speed and ignition advance angle, and easily increasing or decreasing the ignition advance angle. Soft rubber wrapped focused lens delivers concentrated light for precise visibility of timing marks and better handling. Use scenarios Tuning a 4stroke engine such as a motorcycle or lawn equipment, using the display to monitor ignition timing while making adjustments. Servicing a 2stroke engine such as a scooter or small power tool, switching modes and adjusting timing with the easytouse controls. Performing engine diagnostics in a workshop, using the digital readout and focused illumination to verify timing and engine speed during testing.