• Digital model with indicator lights and LED display. • Four buttons to switch between 4-stroke and 2-stroke, display RPM and ignition angle. • High precision and sensitivity for measuring RPM and engine advance. • Wide range of applications: gasoline vehicles with conventional, electronic, computer-controlled, DIS, or 2-cycle ignition systems. • Suitable for cars, motorcycles, boats, sedans, ships, airplanes, club cars, lawnmowers, and other 12V batteries. • High-quality ABS material, sturdy and durable with ergonomic handle. • Equipped with red and black sensor clips to distinguish polarity. • Inductive pickup for easy connection. • Xenon flash tube and Fresnel lens focused for clear viewing even in broad daylight. • Product dimensions: 0.1 cm wide, 0.1 cm high, 0.1 cm long. • Product weight: 0.649 kg.