Features: Re-timing design makes your car ignition get the best performance. Suitable for cars, agricultural and marine engines, easily operate on 12V ignition systems. Impact-resistant and fine-quality ABS housing. Focused lens provides light for high visibility of timing mark. Detachable clamp-on inductive pickup, easy and secure to connect. The ergonomically designed handle makes you feel more comfortable. Fine-quality material, practical and easy to use. The clamps are replaceable.