Check the listing for details. Inductive Timing Light Autotune Model 4115 Brighter. Condition: Used. Listed at 19.99 USD. The Inductive Timing Light Autotune Model 4115 is a high-quality diagnostic tool designed for automotive use. With its inductive feature, this timing light offers a brighter and more precise light beam for accurate timing measurements. The Autotune brand ensures reliability and durability, making this model a valuable tool for mechanics and car enthusiasts looking to adjust and troubleshoot vehicle timing systems. The 4115 model is a top choice for those seeking a dependable and efficient timing light for their automotive projects.