This ignition timing machine is suitable for automobiles, motorcycles and all two-stroke or four-stroke gasoline engines. It adopts impact-resistant ABS shell, and the working voltage is 12V. It can detect car knock suppression control system and vacuum angle control system. 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. Specifications: Material: ABS Main color: black Input: 12V Working temperature: 0-40℃ Trigger point: No.1 cylinder high-voltage spark plug Speed: 200-10000r/min Item weight (approx.): 450g / 15.9oz / 1lb Package size: 300 * 200 * 65mm / 11.8 * 7.9 * 2.6in Package weight (approx.): 500g / 17.6oz / 1.1lb Notes: 1. The power supply is 12V. 2. Electrode: Red +, Black -. 3. It can be used only when the arrow on the sensor clip points to spark plug. Package List: 1 * Inductive Ignition Timing Light