This item is a vintage Sears Craftsman Inductive Timing Light (Model 161.2134). Function: It is a diagnostic tool used to check and set the ignition timing on internal combustion engines by flashing a strobe light at the precise moment the spark plug fires. Features: It features a chrome housing, an inductive pickup clamp that attaches to the number one spark plug wire, and battery clips for 12V power. Usage: It helps ensure engines run at peak efficiency by fine-tuning when the spark ignites the fuel.
